R+W | Industrial Drive couplings

RELIABLE | COMPACT | ROBUST

INDUSTRIAL DRIVE COUPLINGS FOR THE MOST DEMANDING POWER TRANSMISSION APPLICATIONS.

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THE COUPLING.

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WHO WE ARE.

ABOVE ALL R+W IS: THE PERFECT COUPLING. When R+W Antriebselemente GmbH was first established in 1990 in Klingenberg, Germany, there were three people on board. The head office is still there, but we are now more than 170 people, with subsidiaries in the USA, China, Italy, Singapore, France and Slovakia, and are partnered with over 60 well established distributors in more than 40 countries throughout the world. Many developments have lead to this success, but most importantly it was brought about by our endless search for the best possible coupling solutions as well as the high esteem in which we hold all of our customers.

WE PROVIDE INSPIRED SOLUTIONS BACKED

BY SOUND PLANNING AND DESIGN. R+W stands for expertise in the development of solutions for precise torque transmission. The focus of our development is on innovative coupling systems for all sectors of precision drive technology. As a leading manufacturer of precision couplings and line shafts, we strive to maintain a permanent status of technology leadership in our field. Our central claim: R+W couplings ensure precision for process reliability and efficiency, and to that end we seek perfection.

Optimized for technology and business, our product portfolio includes: Metallic couplings Elastic couplings Ball-detent safety couplings Drive shafts Industrial Drive couplings Development of customized solutions with collaboration from start to finish, including: – – – – –

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Consultation Conception Engineering analysis Prototyping Manufacturing

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DRIVE D - DYNAMIC Our staff is trained to always be ready and willing to provide a quick reaction to customer inquiries. Our product, the core of which is based on handling high performance, dynamic applications, is increasingly available for fast delivery.

R - RELIABLE Many of our products are designed for infinite life with zero maintenance required. With thorough engineering processes in place, and an ISO 9001:2008 certified production facility, we continue to deliver high quality coupling products with a high level of reliability.

I - INNOVATIVE Our business was founded on developing unique and innovative solutions to common coupling problems. Our staff in turn is constantly developing its work flows to streamline delivery and simplify the process for our customers.

V - VERSATILE With products successfully applied and deployed in over 125 industry segments, chances are very good that we have an expert on our versatile staff that is familiar with your application requirements.

E - EXPANDING With double digit annual growth the norm, our company is ever expanding, adding new product offerings and opening new service centers throughout the world all the time.

MORE R+W COUPLINGS Aside from the products detailed in this catalog, we also offer high quality shaft couplings and torque limiters for servo motion control and other small to mid-size precision applications.

More information on these can be found in our PRECISION COUPLINGS catalog.

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APPLICATIONS AND DESIGN FEATURES INDUSTRIAL DRIVE COUPLINGS SIZING AND SELECTION P. 7

INSTALLATION AND HANDLING P. 25

ST

SAFETY COUPLINGS

P. 35

SIZES FROM 2,000 – 165,000 Nm AREAS OF APPLICATION

FEATURES

timber processing machinery bulk material handling systems tunnel boring machinery industrial shredders rotary test stands extruder drives wastewater scraper drives wherever potential for torque overload exists

adjustable disengagement torque precise overload protection compact, simple design zero maintenance backlash free

TORSIONALLY STIFF BELLOWS COUPLINGS

BX ZA P. 53

SIZES FROM 1,500 – 100,000 Nm AREAS OF APPLICATION test stands centrifuges wind energy machine tools printing machinery wherever precise transmission is required

FEATURES robust construction high torsional stiffness fatigue resistant for infinite life easy to mount and dismount precise rotational transmission minimal restoring loads under misalignment

BACKLASH FREE SERVOMAX® ELASTIC JAW COUPLINGS

EK EZ P. 61

SIZES FROM 1,950 – 25,000 Nm AREAS OF APPLICATION pump systems conveyors material handling systems extruder drives crushers shredders wherever shock, vibration, and misalignment need to be absorbed

FEATURES vibration damping electrically isolating (standard version) misalignment compensation backlash free maintenance free

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SIZING

HIGH STRENGTH DISC PACK COUPLINGS

LP INSTALLATION

P. 69

SIZES FROM 350 – 20,000 Nm

FLEXIBLE GEAR COUPLINGS

SAFETY COUPLINGS ST

maintenance free for infinite life frictional clamping of disc packs high speeds with extended DBSE zero backlash high torsional stiffness low restoring forces from misalignment misalignment compensation

BZ P. 77

SIZES FROM 1,300 – 348,000 Nm mixers rolling mills conveyors crushers shredders levelers wherever high torque and low cost meet

FEATURES

ELASTOMER COUPLINGS EK | EZ

AREAS OF APPLICATION

very compact design corrosion resistant large misalignment compensation reduced wear design low maintenance

FOR USE IN HAZARDOUS ENVIRONMENTS – ATEX

ATEX

FEATURES

for safer operation in industries with explosive atmospheres, such as:

For hazard zones 1/21 and 2/22 these couplings are authorized under directive 94/9/EG. Safety couplings Bellows couplings Elastic jaw couplings Disc pack couplings

ATEX CERTIFIED COUPLINGS

oil & gas extraction petrochemical processing munitions manufacturing bulk and powder processing paint systems

CROWNED GEAR COUPLINGS BZ

P. 83

AREAS OF APPLICATION

BELLOWS COUPLINGS BX | ZA

API 610 pump packages paper machinery steel mill equipment test stands generators bulk material handling systems centrifuges cooling tower drives compressors printing machinery for infinite life in extreme conditions

FEATURES

DISC PACK COUPLINGS LP

AREAS OF APPLICATION

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SIZING

SIZING AND SELECTION

According to DIN 740 part 2

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SIZING AND SELECTION

ST

SAFETY COUPLINGS SYMBOLS TAR K Tmax TAN PDrive n

α

t ω JL JA TAS S F r s FV

η

d0 FV CT JMasch.

JMot. fe

= Disengagement torque of the coupling (Nm) = Service factor = Maximum torque of the drive system (Nm) = Rated torque of the motor (Nm) = Drive power (kW) = Drive speed (min-1) rad = Angular acceleration s2 = Acceleration time (s) = Angular velocity (rad/s) = Moment of inertia of load (kgm2) = Moment of inertia of drive (kgm2) = Peak motor torque (Nm) = Number of safety elements = Tangential force (kN) = Radius to element (m) = Spindle pitch (mm) = Feed force (N) = Spindle efficiency = Pitch diameter (mm) = Feed force (N) = Torsional stiffness of coupling (Nm/rad) = Total load inertia (kgm2) (e.g. shaft + sprocket + chain + roller + 1/2 of coupling) = Total driving inertia (kgm2) (e.g. motor shaft + 1/2 of coupling) = Resonant frequency of the two mass system (Hz)

Shock or Load Factor SA uniform load

non-uniform load

heavy shock load

1

2

3

For many crushing and shredding applications load factors are commonly SA = 2-3

ACCORDING TO DISENGAGEMENT TORQUE Safety couplings are normally selected according to the required disengagement torque, which must be greater than the maximum torque required for start-up and operation.

Disengagement torque values are often determined from the drive data and are typically a multiple of the nominal torque at the operating drive speed (TAN). In addition to a start-up torque (TMAX), the following values are used as further safety factors, depending on the load conditions: K = 1.3 uniform harmonious load K = 1.5 non-uniform load K = 1.8 heavy shock load

TAR ≧ K · Tmax (Nm) or

TAN ≧ 9,550 · PDrive (Nm) n

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SIZING

ACCORDING TO ACCELERATION (START-UP WITH NO LOAD)

JL TAR ≧ α · JL ≧ J + J · TAs · SA (Nm) A L α=

ACCORDING TO ACCELERATION (START-UP WITH LOAD)

TAR ≧ α · JL + TAN ≧

[

JL · (TAS –TAN) + TAN JA + JL

ACCORDING TO THE NUMBER OF SAFETY ELEMENTS

]

· SA (Nm)

TAR = S · F · r

radius

0,11 m

π· n ω = t · 30 n

ACCORDING TO LINEAR FEED FORCE

motor shaft

Screw drive

TAN =

s · Fv 2,000 · π · η

(Nm)

Rack and pinion drive

TAN =

ACCORDING TO RESONANT FREQUENCY The torsional natural frequency of the coupling must be significantly higher or lower than that of the equipment.

For the mechanical substitution model the two mass system applies.

fe =

1 2· π

d0 · Fv 2,000

CT ·

(Nm)

JMasch + JMot JMasch · JMot

(Hz)

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SIZING AND SELECTION

ST

SAFETY COUPLINGS ELASTIC JAW COUPLING DESIGN ST2 Size TKN Rated Torque TKmax Maximum Torque Torsional Stiffness

ST2 / 10

ST2 / 25

ST2 / 60

ST2 / 160

(Nm)

10,000

15,000

40,000

80,000

(Nm)

22,000

33,000

88,000

176,000

145

230

580

1000

1

1

1

1

(103 Nm/rad)

Relative Damping

LOAD FACTORS BY MACHINE TYPE EXCAVATORS S bucket chain excavators S traveling gear (caterpillar) M traveling gear (rails) M suction pumps S bucket wheels M slewing gears CONSTRUCTION MACHINERY M concrete mixers M road construction machinery CHEMICAL INDUSTRY M mixers G agitators (light fluids) M dryer drums G centrifuges FEEDERS AND CONVEYORS S belt conveyors G belt conveyors (bulk materials) M belt bucket conveyors M screw conveyors M circular conveyors M hoists

BLOWERS AND FANS¹ G blowers (axial/radial) P:n ≤ 0.007 M blowers (axial/radial) P:n ≤ 0.007 S blowers (axial/radial) P:n > 0.007 G cooling tower fans P:n ≤ 0.007 M cooling tower fans P:n ≤ 0.007 S cooling tower fans P:n > 0.007 GENERATORS AND TRANSFORMERS S generators RUBBER MACHINERY S extruders S calendars M mixers S rolling millse WOOD PROCESSING MACHINERY G woodworking machines CRANES S traveling gears S hoisting gears M slewing gears PLASTICS MACHINERY M mixers M shredders METALWORKING MACHINERY M sheet metal bending machines S plate straightening machines

¹)

P = power of drive in kW

S M S M

presses shears punch presses machine tools, main drives

FOOD PROCESSING MACHINERY G filling machines M kneading machines M cane crushers M cane cutters S cane mills M sugar beet cutters M sugar beet washers PAPER MACHINERY S wood cutters S calendars S wet presses S suction presses S suction rollers S drying cylinders PUMPS S piston pumps G centrifugal pumps (light fluids) S reciprocating pumps STONE AND CLAY MACHINES S breakers

S rotary kilns S hammer mills S brick presses TEXTILE MACHINERY M tanning vats M willows M looms COMPRESSORS S reciprocating compressors M centrifugal compressors METAL ROLLING MILLS M plate tilters S ingot handling machinery M winding machines (strip and wire) S descaling machines S cold rolling mills M chain transfers M cross transfers M roller straighteners S tube welding machines S continuous casting plants M roller adjustment drives LAUNDRY MACHINES M tumblers M washing machines WASTEWATER TREATMENT PLANTS M aerators G screw pumps

n = speed of drive in rpm

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SIZING

DESIGN FACTORS Shock or Load Factor SA Drive type electric motors, turbines, hydraulic motors internal combustion engines ≥4 cylinder degree of uniformity ≥1:100

Temperature Factor Sυ

Load characteristics of driven machine G

M

S

1.25

1.6

2.0

Ambient Temperature

-40 C° +30 C°

+40 C°

+60 C°

+80 C°

> +80 C°

1.0

1.1

1.4

1.8

on request

30

60

120

240

>240

1.0

1.1

1.2

1.3

on request

Sυ

Start Factor S Z 1.5

2.2

2.5

G = smooth uniform load | M = moderate load | S = heavy shock load

Starts per Hour SZ

ACCORDING TO TORQUE 1. Calculate the drive torque TAN.

TAN ≧ 9,550 · PDrive n

2. Base the coupling rated torque TKN on the drive torque TAN multiplied by the application factors.

Example: Coupling between an electric motor (P=450kW and n=980 rpm) and a gearbox driving a conveyor. smooth uniform load = G : SA = 1.25 ambient temperature 40˚C : Sυ = 1.1 starts 30/h : SZ = 1.0

All data subject to change without notice.

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(Nm)

TKN ≥ TAN · SA · Sυ · SZ

TAN = 9,550 ·

450 kW 980 min.-1

= 4,385.2 Nm

TKN ≥ TAN · SA · Sυ · SZ TKN ≥ 4,385.2 Nm · 1.25 · 1.1 · 1.0 = 6,029.7 Nm Selected coupling: ST2 / 10 with elastomer coupling TKN = 6,030 Nm

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SIZING AND SELECTION

SAFETY COUPLINGS

ST

GEAR COUPLING DESIGN ST4 Size TKN Rated Torque

ST4 / 10

ST4 / 25

ST4 / 60

ST4 / 160

(Nm)

16,000

22,000

62,000

174,000 348,000

TKmax Maximum Torque

(Nm)

32,000

44,000

124,000

Volume of Grease

(dm3)

0.52

0.8

1.51

3.29

n Ref (max speed)

(min.-1)

6,050

5,150

3,600

3,050

*only allowable at reduced torque and misalignment levels (see table on page 13)

ACCORDING TO TORQUE 1. Calculate the drive torque. TAN.

TAN ≧ 9,550 · PDrive n

2. Base the coupling rated torque TKN on the drive torque TAN multiplied by the application factor. (see page 17 for shock or load factors SA).

Example: Coupling between an electric motor (P=1000kW and n=980 rpm) and a gearbox driving a screw conveyor (SA = 1.6).

(Nm)

TKN ≥ TAN · SA

TAN = 9,550 ·

100 kW 980 min.-1

= 9,744 Nm

TKN ≥ TAN · SA TKN ≥ 9,744 Nm · 1.6 = 15,591 Nm Selected coupling: ST4 / 10 with gear coupling TKN = 16,000 Nm

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SIZING

RATINGS CHART Maximum torque, speed and misalignment are related and can not exist at the same time.

u Ang

n. alig mis lar

An gu la

rm

isa

lign

. 0.

4°

0.2°

Ang ular mis alig

n. 0.3

°

°

0.5

° 0.75 gn.

isali

lar m

Angu

Torque

Evaluation of T/TKN and n / nmax 왘 Compare plotted values for combined limits

Non-allowable zone Please contact R+W

n/nmax (%)

Speed

Example: Coupling ST4 / 10 T = 5,600 Nm

T/

TKN

5,600 = ---------- · 100 = 35% 16,000

2,700 n = 2,700 min.-1 n/ = ---------- · 100 = 45% nmax 6,050 Angular misalignment: 0.4° 왘 Coupling is within operable range - ST4 / 10 can be used.

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SIZING AND SELECTION

BX

BELLOWS COUPLINGS SYMBOLS TKN

= Rated torque of coupling (Nm)

TAS

= Peak torque (Nm) e.g. maximum acceleration peak torque or maximum braking torque from the load

JL

= Moment of inertia of the load (load + drive line components + half of coupling) (kgm 2)

JA

= Drive inertia (rotor of motor + drive line components + half of coupling) (kgm 2)

CT

= Torsional stiffness of coupling (Nm/rad)

fe

= Resonant frequency of the two mass system (Hz)

fer

= Exitation frequency of the drive (Hz)

φ

= Angle of twist (degree)

Shock or Load Factor SA uniform load

non-uniform load

heavy shock load

1

2

3-4

For many crushing and shredding applications load factors are commonly SA = 2-3

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SIZING

ACCORDING TO TORQUE Couplings are normally sized for the highest torque to beregularly transmitted. The peak torque of the application should not exceed the rated torque of the coupling. The following calculation provides an approximation of the minimum required coupling size, and allows for the maximum rated speed and misalignment to exist in the application.

TKN ≧ 1.5 · TAS (Nm)

ACCORDING TO ACCELERATION TORQUE A more detailed calculation takes acceleration and the driving and driven moments of inertia into account. A strong inertia ratio diminishes the effect of the load factor in the sizing calculation.

JL TKN ≧ TAS · SA · J + J (Nm) A L

ACCORDING TO RESONANT FREQUENCY The torsional natural frequency of the coupling must be significantly higher or lower than that of the equipment. For the mechanical substitution model the two mass system applies.

fe =

1 2· π

In practice the following applies: fe ≥ 2 · fer

CT ·

JA + JL JA · JL

(Hz)

Two Mass System motor

JA

coupling

load

CT JL

ACCORDING TO TORSIONAL DEFLECTION To calculate transmission error as a result of torsional stress:

φ=

180 TAS · (degree) π CT

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SIZING AND SELECTION

EK

ELASTIC JAW COUPLINGS SYMBOLS TKN

= Rated torque of the coupling (Nm)

TKmax

= Maximum torque rating of coupling (Nm)

TS

= Peak torque applied to the coupling (Nm)

TAS

= Peak torque of the drive system (Nm)

TAN

= Nominal torque of the drive system (Nm)

TLN

= Nominal torque of the load (Nm)

P

= Drive power (kW)

n

= Rotational speed (min.-1)

JA

= Total driving inertia (kgm2) (motor [including gear ratio] + 1/2 of coupling)

JL

= Total load inertia (kgm2) (load + drive line components + half of coupling)

J1

= Moment of inertia of driving coupling half (kgm2)

J2

= Moment of inertia of driving coupling half (kgm2)

m

= Ratio of the moment of inertia of the drive to the load

υ

= Temperature at the coupling (also consider radiant heat)

Sυ

= Temperature factor

SA

= Load factor

SZ

= Start factor (factor for the number of starts per hour)

Zh

= Number of starts per hour (1/h)

Temperature factor Sυ Temperature (υ)

A

B

E

Sh 98 A

Sh 64 D

Sh 64 D

>

-30°C to

-10°C

1.5

1.3

1.2

>

-10°C to

+30°C

1.0

1.0

1.0

>

+30°C to

+40°C

1.2

1.1

1.0

>

+40°C to

+60°C

1.4

1.3

1.2

>

+60°C to

+80°C

1.7

1.5

1.3

>

+80°C to

+100°C

2.0

1.8

1.6

> +100°C to

+120°C

–

2.4

2.0

> +120°C to

+150°C

–

–

2.8

Zh

up to 120

120 to 240

over 240

SZ

1.0

1.3

on request

Start factor SZ

Shock / load factor SA uniform load

non-uniform load

heavy shock load

1

1.8

2.5

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SIZING

COUPLING SELECTION FOR OPERATION WITHOUT SHOCK OR REVERSAL The rated torque of the coupling (TKN) must be greater than the rated torque of the load (TLN), taking into account the temperature at the coupling (Temperature factor Sυ).

Should TLN be unknown, TAN can be used as a substitute in the formula.

Calculation

TKN > TAN · Sυ Supplemental Calculation

TAN =

9,550 · P n

Sample calculation: (without shock loads) Coupling conditions υ = 70° C Sυ = 1.7 (for 70°/ Elastomer Type A)

Drive for centrifugal pump TAN = 85 Nm

Calculation: TKN > TAN x Sυ TKN > 85 Nm · 1.7 TKN > 144.5 Nm

Result: Coupling model EK2/150/A (TKN = 160 Nm) is selected.

COUPLING SELECTION FOR OPERATION WITH SHOCK LOADS Same basic conditions as above. In addition, the maximum torque rating of the coupling (TKmax) is dictated by peak torque (TS) due to shock loads.

Calculation

TKN > TAN · Sυ Calculation

TKmax > TS · SZ · Sυ

Supplemental Calculation

TAN =

9,550 · P n

Supplemental Calculation

TS = m=

TAS · SA m+1 JA · J1 JL · J2

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SIZING AND SELECTION

DRIVE SHAFT COUPLINGS

ZA

EZ

SYMBOLS A

= Overall length (mm)

AB

= Distance between flextures (mm) AB = (A – 2xN)

Z

= Tube length (mm) Z = (A – 2xH)

H

= Length of coupling ends (mm)

N

= Length to flexture (mm)

TAS

= Peak torque of the drive (Nm)

φ

= Torsional deflection (degree)

CTB

= Torsional stiffness of both flexible elements (Nm/rad)

CT

ZWR

= Torsional stiffness per 1m of tubing (Nm/rad)

CT

ZA

= Total torsional stiffness (Nm/rad)

nk

= Critical speed (1/min.)

CTdynE

= Dynamic torsional stiffness of both elastomer inserts (Nm/rad)

CTdynEZ = Total torsional stiffness (Nm/rad)

ZA

EZ AB

N

N

Kr

Z

H A

MODEL ZA Size

Torsional stiffness of both bellows bodies

Torsional stiffness per 1m of standard tubing

Length of coupling ends ZA

Length to flexture

Maximum axial misalignment

CTB (Nm/rad)

CTZWR (Nm/rad)

H (mm)

N (mm)

Δ Ka (mm)

1500

1,400,000

775,000

92

56

4

4000

4,850,000

1,160,000

102

61

4

Table 1

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SIZING

MODEL EZ Size

Torsional stiffness of both flexible elements

Torsional stiffness per 1m of tubing

Length of coupling ends EZ

Length to flexture

Max. axial misalignment

Elastomer insert A CTB (Nm/rad)

Elastomer insert B CTB (Nm/rad)

CTZWR (Nm/rad)

H (mm)

N (mm)

Δ Ka (mm)

2500

87,500

108,000

950,000

142

108

5

4500

168,500

371,500

2,200,000

181

137

5

9500

590,000

670,000

5,500,000

229

171

6

Table 2

TEMPERATURE FACTOR S

MAXIMUM TRANSMITTABLE TORQUE BY BORE DIAMETER (Nm) Size 2500 4500 9500

A

Ø 35

Ø 45

Ø 50

Ø 55

Ø 60

Ø 65

Ø 70

Ø 75

Ø 80

Ø 90

1900

2600

2900

3200

3500

3800

4000

4300

4600

5200

5300

5800

6300

7000

7600

8200

8800

9400

10600

9200

10100

11100

11900

12800

13800

14800

16700

Ø 120

Ø 140

> 14100 22000

25600

B

Sh 98 A Sh 64 D

Temperature (φ) -30°

to

-10°

1.5

1.7

>

-10°

to

+30°

1.0

1.0

>

+30°

to

+40°

1.2

1.1

>

+40°

to

+60°

1.4

1.3

>

+60°

to

+80°

1.7

1.5

>

+80°

to

+100°

2.0

1.8

> +100°

to

+120°

–

2.4

ACCORDING TO TORSIONAL STIFFNESS Condition: Line shaft ZA, Size 1,500 TAS = 1,500Nm Wanted: Total torsional stiffness CTZA (CTZA) =

1,400,000 Nm/rad x (728,800 Nm/rad / 1.344 m) = 390,867 [Nm/rad] 1,400,000 Nm/rad + (728,800 Nm/rad / 1.344 m)

(CT

CTB · ( CTZWR/Z) )= B (Nm/rad) CT + ( CTZWR/Z)

ZA

ACCORDING TO TORSIONAL DEFLECTION Condition: Line shaft ZA, size 1,500 TAS = 1,500 Nm Wanted: Torsional deflection at maximum acceleration torque TAS Measurement (A) of line shaft = 1.5m Length (Z) of tubing = A-(2xH) = 1.344m

ϕ

=

180 x 1,500 Nm π x 390,867 Nm/rad

φ =

180 • TAS π • CTZA

(degree)

= 0.21°

With a maximum torque of 1,500 Nm the torsional deflection is 0.21°

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SIZING AND SELECTION

ZA

DRIVE SHAFT COUPLINGS

EZ

ACCORDING TO MAXIMUM MISALIGNMENT Lateral misalignment

Kr

Angular misalignment

Kw

Axial misalignment

Ka

ZA

EZ

Δ Krmax = tan Δ Kw · AB 2 AB = A – 2xN

Kwmax. = 2°

See table 1+2 Pages 16+17

R+W CALCULATION PROGRAM Using proprietary software, R+W will calculate the specific mechanical details of exactly the model you plan to use.

Overall length, tube materials (e.g. steel, aluminum, CFK), and other factors are used to determine a number of performance values unique to your line shaft coupling.

Critical speed Torsional stiffness of tubing Overall stiffness Torsional deflection Total Weight Moment of inertia Maximum misalignment

nk CT ZWR CT ZA ϕ m J Kr

= = = = = = =

1/min.

Nm/rad Nm/rad degree-min-sec kg kgm2 mm

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SIZING AND SELECTION

LP

DISC PACK COUPLINGS SYMBOLS TKN

= Rated torque of the coupling (Nm)

TAS

= Peak torque of the drive system e.g. max. acceleration torque of drive (Nm) or max. braking torque of load (Nm)

JL

= Total load inertia (e.g. shaft + sprocket + chain + roller + 1/2 of coupling) (kgm 2)

JA

= Total driving inertia (motor [including gear ratio] + 1/2 of coupling) (kgm 2)

CT

= Torsional stiffness of the coupling (Nm/rad)

fe

= Natural frequency of the two mass system (Hz)

fer

= Excitation frequency of the drive (Hz)

φ

= Torsional deflection (degree)

Shock or Load Factor SA uniform load

non-uniform load

highly dynamic load

1

2

3-4

Common factor for servo drives in machine tools: SA = 2-3

ACCORDING TO TORQUE Couplings are normally sized for the highest torque to be regularly transmitted. The peak torque of the application should not exceed the rated torque of the coupling. The following calculation provides an approximation of the minimum required coupling size, and allows for the maximum rated speed and misalignment to exist in the application.

TKN ≧ 1.5 · TAS (Nm)

ACCORDING TO ACCELERATION TORQUE A more detailed calculation takes acceleration and the driving and driven moments of inertia into account. A strong inertia ratio diminishes the effect of the load factor in the sizing calculation.

JL TKN ≧ TAS · SA · J + J (Nm) A L

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SIZING AND SELECTION

GEAR COUPLINGS

BZ

SYMBOLS TKN

= Rated torque of the coupling (Nm)

TAN

= Rated torque of the drive (Nm)

SA

= Shock or load factor

P

= Drive power (kW)

n

= Rotational speed (rpm)

DESIGN FACTORS Shock or Load Factor SA Drive type

Load characteristics of driven machine G

M

S

electric motors, turbines, hydraulic motors

1.25

1.6

2.0

internal combustion engines ≥4 cylinder degree of uniformity ≥1:100

1.5

2.2

2.5

G = smooth uniform load | M = moderate load | S = heavy shock load

LOAD FACTORS BY MACHINE TYPE EXCAVATORS S bucket chain excavators S traveling gear (caterpillar) M traveling gear (rails) M suction pumps S bucket wheels M slewing gears CONSTRUCTION MACHINERY M concrete mixers M road construction machinery CHEMICAL INDUSTRY M mixers G agitators (light fluids) M dryer drums G centrifuges FEEDERS AND CONVEYORS S belt conveyors G belt conveyors (bulk materials) M belt bucket conveyors M screw conveyors M circular conveyors M hoists

BLOWERS AND FANS¹ G blowers (axial/radial) P:n ≤ 0.007 M blowers (axial/radial) P:n ≤ 0.007 S blowers (axial/radial) P:n > 0.007 G cooling tower fans P:n ≤ 0.007 M cooling tower fans P:n ≤ 0.007 S cooling tower fans P:n > 0.007 GENERATORS AND TRANSFORMERS S generators RUBBER MACHINERY S extruders S calendars M mixers S rolling millse WOOD PROCESSING MACHINERY G woodworking machines CRANES S traveling gears S hoisting gears M slewing gears PLASTICS MACHINERY M mixers M shredders METALWORKING MACHINERY M sheet metal bending machines S plate straightening machines

¹)

P = power of drive in kW n = speed of drive in rpm

S M S M

presses shears punch presses machine tools, main drives

FOOD PROCESSING MACHINERY G filling machines M kneading machines M cane crushers M cane cutters S cane mills M sugar beet cutters M sugar beet washers PAPER MACHINERY S wood cutters S calendars S wet presses S suction presses S suction rollers S drying cylinders PUMPS S piston pumps G centrifugal pumps (light fluids) S reciprocating pumps STONE AND CLAY MACHINES S breakers

S rotary kilns S hammer mills S brick presses TEXTILE MACHINERY M tanning vats M willows M looms COMPRESSORS S reciprocating compressors M centrifugal compressors METAL ROLLING MILLS M plate tilters S ingot handling machinery M winding machines (strip and wire) S descaling machines S cold rolling mills M chain transfers M cross transfers M roller straighteners S tube welding machines S continuous casting plants M roller adjustment drives LAUNDRY MACHINES M tumblers M washing machines WASTEWATER TREATMENT PLANTS M aerators G screw pumps

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SIZING

ACCORDING TO TORQUE 1. Calculate the drive torque at speed TAN.

TAN ≧ 9,550 · 2. Determine the required torque rating of the coupling TKN based on the drive torque TAN multiplied by the shock or load factor SA (see page 17)

PDrive (Nm) n

TKN ≥ TAN · SA

Sample calculation: Coupling between an electric motor (P=1000 kW at n=980 rpm) and a transmission, driving a screw conveyor (SA=1.6).

TAN = 9,550 ·

1,000 kW

= 9,744 Nm

980 min.-1

TKN ≥ TAN · SA TKN ≥ 9,744 Nm · 1.6 = 15,591 Nm

RATINGS CHART Maximum torque, speed and misalignment are related and can not exist at the same time.

r mi

.5° n. 0 alig mis lar ° .75 n. 0 salig

u Ang

la Angu

Torque

Evaluation of T/TKN and n / nmax 왘 Compare plotted values for combined limits.

Non-allowable zone Please contact R+W

An gu la

rm

isa

lign

. 0.

4°

Speed

Ang ular mis alig

0.2° n. 0.3 °

n/nmax (%)

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INSTALLATION

INSTALLATION AND HANDLING

SHAFT / AXIS MISALIGNMENT Exact alignment of the shaft axes extends the service life of the coupling and adjacent components by minimizing reaction loads from misalignment.

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INSTALLATION AND HANDLING INDUSTRIAL DRIVE COUPLINGS

INDIRECT DRIVES SAFETY COUPLINGS Drive attachments such as sprockets and universal joint shafts need to be centered on one of the precision locating features in the output flange of the coupling. In the case of sprockets, gears, sheaves, etc, the radial load should be centered between the two rows of ball bearings, integral to the coupling. In case this is not possible the overhung load can be supported by additional outboard bearings on the shaft. Make sure to observe the allowable size and radial load ratings for the safety couplings.

ST1

WITH KEYWAY MOUNTING

universal drive shaft motor

motor

timing belt sprocket

STN

WITH CONICAL CLAMPING RINGS

universal drive shaft motor

motor

timing belt sprocket

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INSTALLATION

DIRECT DRIVES SAFETY COUPLINGS Model ST safety couplings are designed for high torque. This is accomplished by means of the robust spring plunger safety elements, which are uniformly distributed around the face of the coupling body. These safety elements provide a spring loaded form fit connection between the input and output of the coupling system. Transmittable torque is determined by the quantity and force settings of the safety elements. At a predetermined maximum torque level, the balls of the safety elements exit the conical detents in the output flange of the coupling, and retract inside the housings of the safety elements.

This creates a complete disconnection of the input and output of the coupling system. Re-engagement is performed by applying pressure to the back side of the safety elements, causing the balls to be released back into their detents. The coupling system is sealed to prevent dirt and debris from entering, and to prevent grease from escaping.

elastic jaw coupling

WITH KEYWAY MOUNTING AND ELASTIC JAW COUPLING

ST2 motor

gear coupling both sides

ST4

WITH KEYWAY MOUNTING AND GEAR COUPLING

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INSTALLATION AND HANDLING INDUSTRIAL DRIVE COUPLINGS

DIRECT DRIVES METAL BELLOWS COUPLINGS

torque transducer

WITH FLANGE MOUNTING

WITH KEYWAY MOUNTING gear drive

BX4

motor

WITH CONICAL CLAMPING RINGS gear drive

BX6

motor

BX1

gear drive

R+W bellows couplings are flexible shaft couplings. The stainless steel bellows compensates for lateral, axial and angular shaft misalignment while transmitting torque with zero backlash and high torsional stiffness.

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INSTALLATION

DIRECT DRIVES BELLOWS DRIVE SHAFTING R+W line shafts are flexible and torsionally rigid. The stainless steel bellows compensate for lateral, axial and angular shaft misalignment while transmitting torque with high precision. A special support system in the flanges of the drive shaft tubing allows for the weight of the tubing to be supported by the adjacent bearings rather than the flexible bellows itself. This allows for drive shaft lengths of up to 6 m without intermediate supports.

ZA

WITH CONICAL CLAMPING HUB

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INSTALLATION AND HANDLING INDUSTRIAL DRIVE COUPLINGS

DIRECT DRIVES ELASTIC JAW COUPLINGS R+W elastic jaw couplings are three piece flexible shaft couplings. The elastomer inserts are preloaded into the jaws, transmitting torque with zero backlash. The coupling system also compensates for lateral, axial, and angular shaft misalignment. The elastomer inserts are available in different hardness levels in order to allow for different characteristics in terms of damping, flexibility, and torsional stiffness.

WITH FULLY SPLIT CLAMPING HUBS spindle

motor

EKH

WITH CONICAL CLAMPING RINGS spindle

WITH SIMPLE KEYWAY MOUNTING spindle

motor

EK1

motor

EK6

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INSTALLATION

DIRECT DRIVES ELASTIC DRIVE SHAFT SYSTEM R+W drive shaft systems are flexible couplings for spanning larger distances between shaft ends. The elastomer inserts compensate for lateral, axial, and angular shaft misalignment. The preloaded elastic coupling system also absorbs vibration while transmitting torque with zero backlash.

WITH FULLY SPLIT CLAMPING HUBS

EZ2 machine

motor

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INSTALLATION AND HANDLING INDUSTRIAL DRIVE COUPLINGS

DIRECT DRIVES DISC PACK COUPLINGS R+W LP series couplings come with the disc packs fully assembled. They need only to be mounted to the hubs and spacers during installation. Once assembled the disc pack couplings compensate for axial, lateral, and angular shaft misalignment.

Torque is transmitted across the disc packs purely by the frictional flanged connection created by the grade 12.9 bolts. This helps to avoid problems associated with backlash, stress concentration, and micro movements, while also making the coupling assembly more torsionally stiff.

torque transducer

LP1

LP2

DOUBLE FLEX

LP2 disc pack coupling worm gear drive

WITH SIMPLE KEYWAY MOUNTING

motor

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INSTALLATION

DIRECT DRIVES CROWNED GEAR COUPLINGS The precise integration of the coupling hub and intermediate flange allow for low backlash and highly rigid torque transmission, while compensating for lateral, axial, and angular shaft misalignment. The crowned geometry of the gearing allows for a long life, even without the presence of misalignment.

BZ1

WITH SIMPLE KEYWAY MOUNTING

BZ1 gear coupling worm gear drive

motor

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ST

SAFETY COUPLINGS ST

SIZES FROM 2,000 - 165,000 Nm SAFETY COUPLINGS

GENERAL INFORMATION ABOUT R+W SAFETY COUPLINGS:

SERVICE LIFE

SPECIAL SOLUTIONS

When properly installed and handled these couplings are completely wear and maintenance free.

Automatic re-engagement, special materials, special flanges, bore profiles, etc. are available on request.

FIT CLEARANCE Overall shaft / hub clearance of 0.02 - 0.07 mm

TEMPERATURE RANGE

ATEX (Optional) For use in hazardous areas available upon request.

DISENGAGEMENT BEHAVIOR Full disengagement / manual reset is standard.

-30 to +120째 C

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ST

TORSIONALLY STIFF SAFETY COUPLINGS SIZES FROM 2 –165 KNm MODEL

ST1

FEATURES with simple keyway mounting for indirect drives from 2 - 165 KNm

Page 40

compact, simple design precise overload protection torsionally stiff integral bearing for overhung load support

STN

with conical clamping ring for indirect drives from 2 - 165 KNm

Page 41

high shaft clamping pressure compact, simple design precise overload protection torsionally stiff integral bearing for overhung load support

ST2

with simple keyway mounting and elastic coupling from 2 - 165 KNm

Page 42

vibration damping compensation for misalignment precise overload protection elastomer segments resistant to oil and dirt press fit design

ST4

with simple keyway mounting and crowned gear coupling from 2 - 165 KNm

Page 44

high power density compensation for misalignment precise overload protection low reaction loads on shaft bearings torsionally stiff

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GENERAL INFORMATION SAFETY COUPLINGS

ST1

STN

ST2

ST4

Positive stop

ST Element

Scale representing number of turns

Adjustment nut

Scale

Preset disengagement force value (6KN)

Face spanner wrench

Adjustment nut Locking screws E3 Bores for spanner wrench

ISO 4762

SAFETY COUPLINGS ST

TORQUE ADJUSTMENT

Element size Adjustment range

ST Element max. 9x Additional locking screw

Red dot (adjustment increments)

Increment of adjustment between red dots

Yellow dot (customer specified disengagement force)

Adjustment range

Serial number

After loosening (approx. 1 rotation) the locking screws (E3), the adjustment nut can be turned to adjust the disengagement setting. Incremental values are marked on the adjustment scale. After adjustment, the torque setting is secured by tightening the locking screws (E3).

Disengagement force

Note All safety elements must be set to the same value.

RE-ENGAGEMENT OF THE SAFETY ELEMENTS After the overload has been cleared, the drive or driven side must be rotated until the re-engagement position markings are lined up. The elements can only be re-engaged in this position.

The element is re-engaged through applying an axial force to the plunger.

Re-engagement is audible. Once this is complete, the torque limiter is ready for operation.

with rubber mallet

with lever

Re-engagement position markings Disengaged element Actuation path (H)

Actuation path (H)

Applied axial force (F)

MANUAL DISENGAGEMENT OF ELEMENTS Prior to machine start-up, the individual elements can be manually disengaged.

A manual disengagement tool is available from R+W (see page 13).

Engaged element

Disengaged element

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GENERAL INFORMATION SAFETY COUPLINGS

RELIABLE TORQUE OVERLOAD PROTECTION ST series safety couplings are designed to decouple machine drives in the event of torque overload, preventing damage and downtime.

A series of ball bearings are spring loaded into detents on an otherwise freely spinning output plate. In the case of the ST series, these ball bearings are mounted onto plungers which are individually loaded in order to generate high clutching forces while maintaining a relatively small profile.

The transmittable torque is determined by the number and force setting of the safety elements and their distance from the center of the rotational axis.

In the event of an overload, the force applied by the detents causes the plungers to overcome the spring loading and retract into the housings, resulting in a complete separation of the driving and driven hubs.

They will not re-engage automatically. After the overload condition has passed, an axial force must be applied in order to re-engage the safety elements into the detents of the output plate.

This is normally accomplished without any special tools, simply requiring a mallet or pry bar.

The safety elements consist of two components: the detent receptacle and the adjustable plunger mechanism.

The force setting is clearly marked on an adjusting scale.

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GENERAL INFORMATION SAFETY COUPLINGS

OPTION: HYDRAULIC ACTUATED RE-ENGAGEMENT SAFETY COUPLINGS ST

With a new combination of hydraulic and mechanical components, the special SH version is available for automatic re-engagement.

The SH system is available to be incorporated into all of the standard ST series safety couplings, from 2,000 - 165,000 Nm. After an overload the coupling can be slowly rotated in reverse to cause the safety elements to automatically engage upon reaching the next set of detent receptacles.

This reduces downtime in heavy equipment by allowing for remote re-engagement of the safety coupling.

Incorporation of the SH system into any standard ST model has no impact on the overall space envelope requirements.

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ST1

WITH SIMPLE KEYWAY MOUNTING 2 - 165 KNm ABOUT Driven side: output flange with 12x fastening threads and integral bearings

MATERIAL Hardened steel (nitrocarburized surface) DESIGN Drive side: coupling hub with keyway connection (spline profile on request)

Safety elements: evenly spaced around the circumference; externally adjustable A1

ØB DIN 6885

Ø Gh7 drawn offset

N

J

H

ISO 4029

Bores for manual rotation

I

plunger for

L

number of safety elements depends on disengagement torque

ØP

A2

Ø0

Ø D F7

Ø E H7

ØF

ØQ C

K

re-engagement

M

MODEL ST1 SIZE Adjustment range available from - to

10 2-6 (KNm)

4-12

25 6-18

3-8

5-16

60 10-25

11-20

22-40

160 35-60

25-55

50-110

Overall length

(mm)

A1

183

230

320

Bore depth

(mm)

A2

158

200

275

360

Flange outside diameter

(mm)

B

270

318

459

648

Fit length

(mm)

C

120

155

220

290

Bore diameter possible Ø to Ø F7

(mm)

D

40-110

60-140

80-200

100-290

Flange centering diameter H7

(mm)

E

170

210

300

450

Bolt circle diameter ±0.3

(mm)

F

220

260

360

570

Outside diameter h7

(mm)

G

259

298

418

618

H

12 x M16

12 x M16

12 x M20

12 x M24

Fastening threads

80-165

3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 30 6 x ST 30 9 x ST 30 3 x ST 70 6 x ST 70 9 x ST 70 410

Thread depth

(mm)

I

25

30

35

40

Fit length

(mm)

J

6

8

8

10

Wall thickness

(mm)

K

17

20

30

38

Distance

(mm)

L

45

83

96

136

Distance

(mm)

M

95

130

165

225

Actuation path

(mm)

N

4

4

7,5

10

Mounting diameter - elements

(mm)

O

220

270

376

532

Hub outside diameter

(mm)

P

170

218

295

418

Bore for fastening screw

(mm)

Q

max. Ø 110

max. Ø 140

max. Ø 200

max. Ø 290

Moment of inertia (approx.) D max.(10¯³ kgm²)

370

780

4600

24600

Speed max.

(rpm)

4200

3800

2500

2000

Allowable max. radial force standard*

(KN)

40

60

100

200

Approx. weight at D max.

(kg)

40

63

179

463

* larger radial loads possible with special bearings

ORDERING EXAMPLE

ST1

025

5-16

12

117.48

25.4

XX

Model Size Adjustment range (KNm) Disengagement torque (KNm)

Special designation only (e.g. custom output flange)

Bore diameter D F7 Bore for fastening screw in shaft end (Q) For custom features place an XX at the end of the part number and describe the special requirements (e.g. ST1 / 025 / 5-16 / 12 / 117.48 / 25.4 / XX)

40

All data subject to change without notice.

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STN

WITH CONICAL CLAMPING RING 2 - 165 KNm ABOUT Driven side: output flange with 12x fastening threads and integral bearings

MATERIAL Hardened steel (nitrocarburized surface) DESIGN Drive side: coupling hub with conical clamping ring connection (spline profile on request)

Safety elements: evenly spaced around the circumference; externally adjustable

Ø D2

Ø E H7

C1 C2

H

ØP

N

Ø D 1F7

J

ØF

ØB

Bores for manual rotation

Ø Gh7

Drawn offset K ISO 4017

SAFETY COUPLINGS ST

Ø A1

ØO

Drawn offset L

Keyway available upon request

Removal jack screws Plunger for

M

re-engagement

Number of safety elements depends

MODEL STN

on the disengagement torque

SIZE Adjustment range available from - to

10 2-6 (KNm)

4-12

25 6-18

3-8

5-16

60 10-25

11-20

22-40

160 35-60

25-55

50-110

Overall length

(mm)

A1

210

227

318

425

Flange outside diameter

(mm)

B

270

318

459

648

Fit length / keyway length

(mm)

C1

147

152

218

305

Effective clamping length

(mm)

C2

62

67

93

125 140 - 290

Bore diameter possible Ø to Ø F7

(mm)

D1

65 - 110

70 - 150

80 - 200

Bore diameter max. Ø F7 with keyway

(mm)

D1

100

140

180

270

Inside diameter

(mm)

D2

110,2

140,2

200,2

290,2

Flange centering diameter H7

(mm)

E

170

210

300

450

Bolt circle diameter ±0.3

(mm)

F

220

260

360

570

Outside diameter h7

(mm)

G

259

298

418

618 12 x M24

Fastening threads

H

12 x M16

12 x M16

12 x M20

Thread depth

(mm)

I

25

30

35

40

Fit length

(mm)

J

6

8

8

10

8 x M16

9 x M16

8 x M20

8 x M24

180

180

570

710

Tightening screw ISO 4017

80-165

3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 30 6 x ST 30 9 x ST 30 3 x ST 70 6 x ST 70 9 x ST 70

K

Tightening torque

(Nm)

Distance

(mm)

L

72

80

94

151

Distance

(mm)

M

122

127

163

240

Actuation path

(mm)

N

4

4

7,5

10

Mounting diameter - elements

(mm)

O

220

270

376

532

Hub outside diameter

(mm)

P

218

278

378

535

Moment of inertia (approx.) D max. (10¯³ kgm²)

446

789

5700

30700

Speed max.

(rpm)

4200

3800

2500

2000

Allowable max. radial force standard*

(KN)

40

60

100

200

Approx. weight at D max.

(kg)

50

65

200

550

* larger radial loads possible with special bearings

ORDERING EXAMPLE

STN

025

5-16

12

117.48

25

XX

Model Size Adjustment range (KNm) Disengagement torque (KNm)

Special designation only (e.g. custom output flange)

Bore diameter D F7 Bore for fastening screw in shaft end (Q) For custom features place an XX at the end of the part number and describe the special requirements (e.g. STN / 025 / 5-16 / 12 / 117.48 / 25 / XX)

All data subject to change without notice.

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ST2

WITH SIMPLE KEYWAY MOUNTING 2 - 165 KNm ABOUT MATERIAL Safety coupling portion: hardened steel (nitrocarburized surface) Elastomer segments: precision molded, wear resistant rubber compound (75-80 Shore A) Elastomer coupling: hubs made from coated high strength cast steel

DESIGN With keyway connection (spline profile on request). Elastomer segments compensate for misalignment and absorb vibration. Safety elements evenly spaced around the circumference.

Field adjustable within the specified range.

A1

E1

Ø B1 ØO

A2

ISO 4029

Ø B2

Drawn offset

N

DIN 6885

ISO 4029

Bores for manual rotation Number of safety elements depends on disengagement torque

MODEL ST2 SIZE

10 2-6

Adjustment range available from - to

(KNm)

4-12

E2 C1

Elastomer segments Cover (removable)

3-8

5-16

ØP

C3

25 6-18

Ø D 2F7

C2

K

Ø D 1F7

ØF

DIN 6885

L M

ØG Plunger for re-engagement

60 10-25

11-20

22-40

160 35-60

25-55

50-110

Overall length ±2

(mm)

A1

360

437

580

730

Length of torque limiting portion

(mm)

A2

183

230

320

410

Flange outside diameter (ST portion)

(mm)

B1

270

318

459

648

Flange outside diameter (elastomer portion)

(mm)

B2

290

330

432

553

Fit length/keyway length D1

(mm)

C1

97

116

160

230

Fit length/keyway length D2

(mm)

C2

120

155

220

290

Bore depth (torque limiting portion)

(mm)

C3

158

200

275

360

Bore diameter (elastomer portion) Ø – Ø F7

(mm)

D1

40-105*

60-130*

80-160*

100-200*

Bore diameter (torque limiting portion) Ø – Ø F7

(mm)

D2

40-110*

60-140*

80-200*

100-290*

Length to cover

(mm)

E1

70

87

112

152

Length to (cover removed)

(mm)

E2

22

26

40

65

Hub diameter

(mm)

F

160

200

255

300

Bore for fastening screw

(mm)

G

max. 110

max. 140

max. 200

max. 290

Distance

(mm)

L

45

83

96

136

Distance

(mm)

M

95

130

165

225

Actuation path

(mm)

N

4

4

7.5

10

Mounting diameter - elements

(mm)

O

220

270

376

532

Hub outside diameter

(mm)

P

170

218

295

418

Moment of inertia (approx.) D max. (10¯³ kgm²)

854

1850

8960

36858

Speed max.

(rpm)

2700

2300

1800

1500

(kg)

80

115

287

729

Axial

(mm)

1.5

1.5

2

2.5

Lateral

(mm)

0.4

0.5

0.6

0.7

Angular

(Grad)

1

1

1

1

145

230

580

1000

Approx. weight at D max.

Dynamic torsional stiffness at TKN (Standard A Insert)

(10³ Nm/rad)

80-165

3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 30 6 x ST 30 9 x ST 30 3 x ST 70 6 x ST 70 9 x ST 70

* larger bore diameters upon request.

42

All data subject to change without notice.

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THE ELASTOMER SEGMENT

Type

Relative damping (ψ)

A (Standard)

1.0

-40°C to +80°C

B

1.0

C

1.0

and angular misalignment. Three different versions are available with version A being supplied unless otherwise specified.

Temperature range constant peak

Material

Shore hardness

Features

+90˚C

Natural and synthetic rubber

75-80 Shore A

Very high wear resistance

-40°C to +100°C

+120˚C

Synthetic rubber

73-78 Shore A

Resistant to many oils and fuels

-70°C to +120°C

+140˚C

Silicone rubber

70-75 Shore A

High temperature range

Note

Elastomer segment

Elastomer segments can be easily changed after installation. Every coupling utilizes 6x elastomer segments. The elastomer segments do not need to be installed prior to coupling mounting.

SAFETY COUPLINGS ST

The compensating elements of the ST2 safety couplings are the elastomer segments. They transmit torque while damping vibration and compensating for lateral, axial

CHANGING THE ELASTOMER SEGMENTS Torque limiting side Elastomer coupling side Cover (axially removed)

Cover (axially removable)

For easier handling, the coupling will be shipped unassembled.

ORDERING EXAMPLE

ST2

025

10-25

15

127

117.48

XX

Model Size Special designation only (e.g. custom output flange)

Adjustment range (KNm) Disengagement torque (KNm) Bore Ø D1 F7 Bore Ø D2 F7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. ST2 / 025 / 10-25 / 15 / 127 / 117.48 / XX)

All data subject to change without notice.

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ST4

WITH SIMPLE KEYWAY MOUNTING 2 - 165 KNm ABOUT MATERIAL Safety coupling portion: hardened steel (nitrocarburized surface)

DESIGN With keyway connection (spline profile on request). Gear coupling for misalignment compensation. Safety elements evenly spaced around the circumference. Field adjustable within the specified range.

Gear coupling portion: wear resistant high strength alloy steel (nitrocarburized surface)

Ø B2

A1

Ø B1 E1

Drawn offset

Gear coupling

C1

C2 Ø0

Ø D 1F7

Ø B4

E1

N

F DIN 609 Ø D 2F7

Ø B3

Gear coupling Bores for manual rotation Number of safety elements depends on the disengagement torque

L

F DIN 609

E2

DIN 6885 or ANSI B17.1 keyway

Plunger for re-engagement

M

MODEL ST4 SIZE Adjustment range available from - to

10 2-6 (KNm)

4-12

25 6-18

3-8

5-16

60 10-25

11-20

22-40

160 35-60

25-55

50-110

Overall length

(mm)

A1

377

430

615

850

Flange outside diameter (ST portion)

(mm)

B1

270

318

459

648

Mounting flange outside diameter (ST portion)

(mm)

B2

259

298

418

618

Flange outside diameter (gear coupling) (mm)

B3

234

274

380

506

Hub diameter (gear coupling)

(mm)

B4

181

209

307

426

Fit length/keyway length

(mm)

C1/2

90

105

150

220

Bore diameter Ø bis Ø F7

(mm)

D1/2

40-112*

55-132*

90-198*

150-275*

Length

(mm)

E1

92.5

108

154

225

Length

(mm)

E2

70

79

116

196

Screw DIN 609 12.9

(mm)

8 x M16

8 x M20

10 x M20

16 x M24

Tightening torque

(mm)

280

650

650

1100

Distance

(mm)

L

146

172

237

320

Distance

(mm)

M

196

222

306

412

Actuation path

(mm)

N

4

4

7.5

10

Mounting diameter - elements

(mm)

O

220

270

376

532

F

Moment of inertia (approx.) D max. (10-3 kgm²)

545

1298

7547

39742

Speed max.

2700

2300

1800

1500

(kg)

69

115

325

870

Axial

(mm)

4

5

6

8

Lateral

(mm)

6

7

8

10

1.2

1.2

1.2

1.2

(rpm)

Approx. weight at D max.

Angular

(Degrees)

80-165

3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 15 6 x ST 15 9 x ST 15 3 x ST 30 6 x ST 30 9 x ST 30 3 x ST 70 6 x ST 70 9 x ST 70

* larger bore diameters upon request.

44

All data subject to change without notice.

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FUNCTION OF THE GEAR COUPLING The high precision gearing of the coupling compensates for lateral, angular, and axial misalignment. The gearing transmits torque with minimal backlash and a high degree

of torsional rigidity. The precise geometry of the gearing ensures the performance of the coupling.

Axial misalignment

Angular and lateral misalignment

SAFETY COUPLINGS ST

Precise gearing of flange Coupling hub with convex, high-precision teeth

Coupling hub is tilted relative to the flange

Coupling hub is axially displaced within the flange

MAINTENANCE AND LUBRICATION Note: Lubrication of the gearing is very important to the service life of the coupling.

An additional seal (optional) ensures the lubrication of the gearing over a long period of time.

Grease fitting (closed with self-locking screw)

Use only high performance grease Grease

RECOMMENDED LUBRICANTS Normal speed Castrol Impervia MDX

Caltex

Coupling Grease

Esso

Klüber

Klüberplex GE 11-680

Fibrax 370

Optional additional seal

Seal O-Ring

High speed

Klüber

Klüberplex GE 11-680 Mobil

Mobilgrease XTC

Mobil

Mobilux EPO

Shell

Albida GC1

Shell

Alvania grease EP R-O or ER 1

Texaco Coupling Grease

Total

Specis EPG

Torque limiter

Gearing

For easier handling, the coupling will be shipped unassembled.

ORDERING EXAMPLE

ST4

025

10-25

15

100

120

XX

Model Size Adjustment range (KNm) Disengagement torque (KNm)

Special designation only (e.g. custom output flange)

Bore Ø D1 F7 Bore Ø D2 F7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. ST4 / 025 / 10-25 / 15 / 100 / 120 / XX)

All data subject to change without notice.

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SAFETY COUPLINGS ST

SAFETY COUPLING ACCESSORIES

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SAFETY ELEMENT

ST

ABOUT MATERIAL Hardened steel (nitrocarburized surface)

FIT TOLERANCE For insertion of the safety elements H7 precision holes should be used for all centered components.

DESIGN Two part assembly for installation into prefabricated coupling components.

Part 1: detent receptacle Part 2: self-contained, spring loaded plunger module.

The spring force setting is adjustable in the field, with the settings clearly marked on an adjustment scale.

RE-ENGAGEMENT When properly located over the detent receptacle the safety element can be re-engaged through the application of pressure to the back side of the plunger core.

Part 2

Design:

Ø D1

C

LK Ø D2

F B1 6x E1 ISO 4762

Part 1

K J

Drive side

G

Ø D4

Ø D3

Engagement receptacle

30˚

Ø A1 g6

30˚

Driven side

Actuation path

H

Adjustment scale w/ locking screws

Ø A2 g6

I

Drawn offset

E2

L ±0,1

Bores for face spanner wrench

B2

MODEL ST SIZE Tangential force (KN) Adjustment range available from - to Centering diameter of safety element g6 Centering diameter engagement receptacle g6

1

15

30

70

1-4

5-10

8-20

2

2-8

10-20

15-40

3

6-20

20-35

30-70

(mm)

A1

40

70

90

(mm)

A2

24

34

44 45

(ranges)

Centering length of safety element

(mm)

B1

20

35

Centering length engagement receptacle

(mm)

B2

14

22

30

Overall length

(mm)

C

70

103

135

Outside diameter

(mm)

D1

59

100

129

Bolt circle diameter

(mm)

D2

50

86

110

Diameter plunger

(mm)

D3

16

28

35

Diameter adjustment nut

(mm)

D4

44

75

92

Screw / Tightening torque ISO 4762

(mm)

E1

6 x M5 x 16 / 10 Nm

6 x M8 x 25 / 40 Nm

6 x M12 x 35 / 120 Nm

Screw / Tightening torque ISO 4762

(mm)

E2

M4 x 14 4.5 Nm

M6 x 20 15.5 Nm

M8 x 25 38 Nm

Flange thickness

(mm)

F

7

12

16

Distance

(mm)

G

5

8

10

Actuation path

(mm)

H

4

7.5

10

Distance

(mm)

I

2

3

4

Radius

(mm)

J

110

200

250

Inner thread

(mm)

K

M8 x 15

M10 x 25

M16 x 30

Distance ± 0,1

(mm)

L

36

60

79

0.65

2.7

6

Weight

(kg)

axial spring force ≈ tangential force/1.4

48

All data subject to change without notice.

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MAINTENANCE The ST elements are lubricated and sealed for life. Routine maintenance is not required. While the safety elements have an extreme service life, they should be periodically checked to ensure proper functionality.

MOUNTING INSTRUCTIONS ST MOUNTING ENGAGEMENT RECEPTACLE

L 1±0.1

L 2±0.1

Precise location achievable with washer per DIN 988 width 0.1/0.2/0.3/0.5

Depth gauge ISO 4762 E2

D2 H7

D1 H7

Thread E4

Driven side

SAFETY COUPLINGS ST

Note: Measurements L1 and L2 must be checked prior to installing the safety elements.

G

Gauge ball

Engagement receptacle

Drive side

Included

DISMOUNTING OF ENGAGEMENT RECEPTACLE After loosening the mounting screw E2, the engagement receptacle can be dismounted with a removal tool.

E2

Thread

Removal tool with

E4

threaded rod

MOUNTING OF SAFETY ELEMENT SIZE Screws E1 Tightening torque

15

30

70

6 x M5 x 16 (12.9)

6 x M8 x 25 (12.9)

6 x M12 x 35 (12.9)

10 Nm

40 Nm

120 Nm

Screws E2 Tightening torque

1 x M4 x 12

1 x M6 x 20

1 x M8 x 25

4.5 Nm

15.5 Nm

38 Nm

Screws E3 Tightening torque

4 x M4 x 14

4 x M4 x 16

4 x M5 x 20

4.5 Nm

4.5 Nm

10 Nm

Thread

E4

M5

M8

M10

Actuation path

H

4 mm

7.5 mm

10 mm

Restoring force

F

max. 2 KN

max. 4 KN

max. 6 KN

L1 ±0,1

36

60

79

Depth measurement L2 ±0,1

10

20.5

29

Gauge ball

16

25

30

Fit length

ØG

ORDERING EXAMPLE

ST

ISO 4762 6x E1

Actuation path

H

Drawn offset

Note: Prior to mounting the safety element, the ball seat must be lubricated (e.g. Klüber Isoflex Topas NB 52).

30

2

12

XX

Model Size Adjustment range 1/2/3

Special designation only (e.g. stainless steel)

Tangential force (KN) For custom features place an XX at the end of the part number and describe the special requirements (e.g. ST / 30 / 2 / 12 / XX)

All data subject to change without notice.

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ST ACCESSORIES SAFETY COUPLINGS ENGAGEMENT AND DISENGAGEMENT ST1

STN

ST2

ST4

engaged element

STN

SIZE

ENGAGEMENT / DISENGAGEMENT TOOL

15

Order number AV/0015

30

Order number AV/0030

70

Order number AV/0070

disengaged element

ORDER NUMBER

ADJUSTMENT WRENCH ST1

ORDER NUMBER

ST2

ST4 Adjustemnt wrench

SIZE

ADJUSTMENT WRENCH

15

Order number SLS/0015

30

Order number SLS/0030

70

Order number SLS/0070

min. max.

SWITCH PLATE ST

R+W mechanical limit switch

Actuation distance

Switch plate

10

25

60

160

Outside diameter

A

278

328

on request

on request

Distance

B

57

57

on request

on request

Thickness

C

4.5

4.5

on request

on request

ﾃ連

Switch plate

SIZE

C B

50

Re-engagement via the switch plate is possible with the use of two pry bars.

All data subject to change without notice.

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PROXIMITY SWITCH (E-STOP FUNCTION)

ORDER NUMBER 650.2703.001

ST

TECHNICAL DATA

ST

Voltage

10 to 30 V DC

Max. output current

200 mA

Max. switch frequency 800 Khz LED

max. 2

0.5

40.5

61.5

Ø 10.6

Temperature range

-25° to +70° C

Protective system

IP 67

Switch type

normally open

Max. detection gap

max. 2 mm

SAFETY COUPLINGS ST

It is important the switches be 100% tested for proper functioning after mounting with safety coupling.

SWITCH DIAGRAM SK, ES2 17 mm across flats

M 12 x 1

load

Ø 10.6 Actuation distance

ORDER NUMBER 618.6740.644

MECHANICAL LIMIT SWITCH (E-STOP FUNCTION) ST

R+W limit switch Actuation plate PG 11

62

10

20

ØA

16

22

TECHNICAL DATA

ST

Max. voltage

250 V AC

MAX. CONSTANT CURRENT:

2.5h A

Protective system

IP 65

Contact system

Opener (forced seperating)

Temperature range

-30° to +80° C

Actuation

Plunger (metal)

SWITCH DIAGRAM ST

30.6

4

8

Ø 4,2

C 31

Ø 7,5

B

The switch plunger (pictured above and right) should be located as close to the actuation ring / limit switch plate as possible (approximately 0.1-0.2mm).

All data subject to change without notice.

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BX ZA

BELLOWS COUPLINGS BX | ZA

SIZES FROM 1,500 - 100,000 Nm BACKLASH FREE, TORSIONALLY STIFF METALLIC BELLOWS COUPLINGS

Optional:

GENERAL INFORMATION ABOUT R+W BELLOWS COUPLINGS:

SERVICE LIFE

SPECIAL SOLUTIONS

R+W bellows couplings are fatigue resistant and wear free for an infinite life, as long as the technical limits are not exceeded.

Various materials, tolerances, dimensions and performance ratings available for custom applications on request.

FIT CLEARANCE

ATEX (Optional)

Overall shaft / hub clearance of 0.03 - 0.08 mm

For use in hazardous areas available upon request.

TEMPERATURE RANGE -40 to +300째 C

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BX ZA

TORSIONALLY STIFF METALLIC BELLOWS COUPLINGS SIZES FROM 1,500 - 100,000 Nm MODEL

BX1

FEATURES with flange mounting from 10 - 100 KNm

Page 55

for customer specific applications

BX4

with simple keyway mounting from 10 - 100 KNm

Page 56

low backlash keyway connection compact, simple design

BX6

with conical clamping ring from 10 - 100 KNm

Page 57

backlash free conical clamping high shaft clamping pressure

ZA

with conical clamping bushing from 1,500 - 4,000 Nm

Page 58

mounting and dismounting without disturbing adjacent equipment standard lengths of up to 6 meters no intermediate support necessary

54

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BX1

WITH FLANGE MOUNTING 10 - 100 KNm ABOUT FEATURES compact, simple design high misalignment compensation integral support system (size 25 and up)

DESIGN Both ends with flanged hubs Spacer between bellows (optional variable length) (size 10 without spacer) welded bellows-hub connection

MATERIAL Hubs: steel Bellows: highly flexible high grade stainless steel

ØF

A ±5 C1

C3

BELLOWS COUPLINGS BX | ZA

Ø D F7

Ø B2

Ø D1

C2 Ø B1

Ø B

Ø D F7

C

E

MODEL BX1 10

25

50

75

100

Rated torque

(KNm)

TKN

10

25

50

75

100

Maximum torque

(KNm)

TKmax

15

38

75

113

150

(mm)

A ±5

125

380

450

580

640

SIZE

Overall length Outside diameter of flange

(mm)

B

310

336

398

449

545

Outside diameter of bellows ±2

(mm)

B1

300

323

370

412

520

Outside diameter of tube

(mm)

B2

–

273

324

360

460

Fit length +0,5

(mm)

C +0,5

4

5

6

10

15

Thread depth

(mm)

C1

15

25

30

36

36

Hub length

(mm)

C2

24

81

80

103

120

Bellows body length +3

(mm)

C3

–

121

133

165

165

Centering diameter F 7

(mm)

D

265

260

310

350

440

Hub diameter +0,3

(mm)

D1

250

240

290

320

390

20x M12

24x M16

24x M20

20x M24

24x M24

120

300

580

1000

1000

F

290

304

361

404

500

Jges.

101

548

1185

2725

7900

8.3

27.8

43.7

80

151

3

5

6

7

8

0.4

2.2

2.5

3

3.5

Fastening threads* E

Tightening torque of the fastening screws (screw grade 10.9)

(Nm)

Bolt circle diameter ±0.4

(mm)

Moment of inertia

(10¯³ kgm²)

Approximate weight

(kg)

Axial

±

(mm)

Lateral

±

(mm)

Torsional stiffness coupling

1.5

1

1

1

1

20,000

9,000

15,500

23,000

35,000

(N/mm)

985

3000

4300

3900

2800

(KN/mm)

21

133

207

175

219

± (degree)

Angular

(103 Nm/rad)

Axial spring stiffness bellows Lateral spring stiffness bellows

Max. value

*drilling pattern between hub 1 and hub 2 not aligned as standard

ORDERING EXAMPLE Model Size / torque rating (KNm)

BX1

50

XX Special designation only (e.g. stainless steel hubs)

For custom features place an XX at the end of the part number and describe the special requirements (e.g. BX1 / 50 / XX; XX = 700 mm overall length)

All data subject to change without notice.

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BX4

WITH SIMPLE KEYWAY MOUNTING 10 - 100 KNm ABOUT FEATURES compact, simple design high misalignment compensation integral support system (size 25 and up)

DESIGN Both sides with removable coupling hubs, including keyway (splines optional) Spacer between bellows (optional variable length) (size 10 without spacer) welded bellows-hub connection

MATERIAL Hubs: steel Bellows: highly flexible high grade stainless steel

A ±5 E1 ISO 4029

C1

ØB

C2

ØF

Ø D2F7

C

Ø B2

Ø B1

Ø D1F7

C Ø B3

C3

E ISO 4017

PFN DIN 6885

MODEL BX4 10

25

50

75

Rated torque

(KNm)

TKN

10

25

50

75

100

Maximum torque

(KNm)

TKmax

15

38

75

113

150

Overall length

(mm)

A±5

210

480

590

760

840

Outside diameter of flange

(mm)

B

310

336

398

449

545

Outside diameter of bellows ±2

(mm)

B1

300

323

370

412

520

Outside diameter of tube

(mm)

B2

–

273

324

360

460

Hub diameter

(mm)

B3

255

260

310

350

440

Fit length

(mm)

C

95

130

200

240

280

Length ±3

(mm)

C1

–

170

200

257

260

Hub length

(mm)

C2

24

81

80

103

120

Distance

(mm)

C3

42

50

70

90

97

Inside diameter possible from Ø to Ø F7

(mm)

D1/D2

50 - 180

60 - 170

80 - 200

100 - 230

120 - 280

Fastening screw ISO 4017 / Tightening torque

(Nm)

E

20xM12 / 120

24xM16 / 300

24xM20 / 580

20xM24 / 1000

24xM24 / 1000 M24 / 800

SIZE

100

Fastening screw ISO 4029 / Tightening torque

(Nm)

E1

M12 / 100

M16 / 220

M20 / 450

M24 / 800

Bolt circle diameter ±0.4

(mm)

F

290

304

361

404

500

Jges.

492

1272

3270

6754

19350

44.7

85

164

260

477

3

5

6

7

8

0.4

2.2

2.5

3

3.5

Moment of inertia

(10¯³ kgm²)

Approximate weight

(kg)

Axial

±

(mm)

Lateral

±

(mm)

Angular

Max. value

± (degree)

Torsional stiffness coupling (103 Nm/rad)

1.5

1

1

1

1

20,000

9,000

15,500

23,000

35,000

MAXIMUM TRANSMITTABLE TORQUE OF KEYWAY CONNECTION Data is in KNm. These values relate to metric DIN 6885 keyway dimensions with 100% contact through the hub.

SIZE

56

Ø 60

Ø 80

Ø 100

Ø 120

Ø140

Ø 160

Ø 170

Ø 180

Ø 200

Ø 220

Ø 230

Ø 240

Ø 260

Ø 280

10

x

x

x

x

x

x

x

x

x

x

x

x

x

x

25

7

12

18

26

34

44

46

x

x

x

x

x

x

x

50

x

19

28

40

52

67

71

84

94

x

x

x

x

x

75

x

x

34

47

62

81

85

101

112

136

142

x

x

x

100

x

x

x

55

74

94

100

118

131

159

166

189

205

220

All data subject to change without notice.

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BX6

WITH REMOVABLE CONICAL CLAMPING RING HUB 10 - 100 KNm ABOUT FEATURES compact, simple design high misalignment compensation integral support (size 25 and up)

DESIGN Both sides with removable clamping hubs including conical clamping ring system.

Spacer between bellows (optional variable length) (size 10 without spacer) welded bellows-hub connection

MATERIAL Hubs: steel Bellows: highly flexible high grade stainless steel A ±5 C1

ØB E1 ISO 4017

E ISO 4017

C

BELLOWS COUPLINGS BX | ZA

Ø D2F7

Ø B2

Ø B1

Ø D1F7

C Ø B3

ØF

Keyway optional

MODEL BX6 10

25

50

75

100

Rated torque

(KNm)

TKN

10

25

50

75

100

Maximum torque

(KNm)

TKmax

15

38

75

113

150

A

235

530

650

840

940

336

398

449

545

SIZE

Overall length

(mm)

Outside diameter of flange

(mm)

B

310

Outside diameter of bellows ±2

(mm)

B1

300

323

370

412

520

Outside diameter of tube

(mm)

B2

–

273

324

360

460

Diameter of clamping ring

(mm)

B3

300

310

380

420

530

Fit length

(mm)

C

90

110

140

170

200

±5

Length

(mm)

C1

55

74

99

130

150

Inside diameter possible from Ø to Ø F7

(mm)

D1/D2

70 - 170

80 - 180

100 - 200

130 - 230

150 - 280

Fastening screw ISO 4017 for mounting flange

(mm)

E

20 x M12

24 x M16

24 x M20

20 x M24

24 x M24

Tightening torque

(Nm)

120

300

580

1000

1000

Fastening screw ISO 4017 for conical clamping ring

(mm)

8 x M16

12 x M16

12 x M20

16 x M20

12 x M24

Tightening torque

(Nm)

200

250

300

350

600

Bolt circle diameter ±0.4

(mm)

F

210

220

250

290

360

Jges.

Moment of inertia

(10¯³ kgm²)

Approximate weight

828

1535

3799

8277

24876

(kg)

60

93

168

280

550

3

5

6

7

8

0,4

2,2

2,5

3

3,5

Axial

±

(mm)

Lateral

±

(mm)

Angular

E1

Max. value

± (degree)

Torsional stiffness coupling (103 Nm/rad)

ORDERING EXAMPLE

1,5

1

1

1

1

20.000

9.000

15.500

23.000

35.000

BX4 | BX6

50

120

200

XX

Model Size / torque rating (KNm) Bore D1 F7

Special designation only (e.g. stainless steel hubs)

Bore D2 F7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. BX4 / 50 / 117.48 / 127 / XX; XX = 700 mm overall length)

All data subject to change without notice.

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WITH CONICAL CLAMPING SYSTEM

ZA

1,500 - 4,000 Nm ABOUT FEATURES Compensation for misalignment Standard lengths of up to 6 meters No intermediate support bearing necessary Full assembly can be mounted laterally without disturbing adjacent equipment

DESIGN With tapered compression bushings and removal screws. Intermediate tube is held by special gimbal supports, extending from the hubs inside the bellows.

MATERIAL Bellows: highly flexible high grade stainless steel Intermediate tube: steel, optional CFK Hubs: steel

HUB / SHAFT CLEARANCE Overall shaft / hub clearance of 0.01 - 0.05 mm

H

N C

I

LK Ø L

ØM

3x jack screws for removal Ø D2H7

Ø D1H7

C

ØB

ROTATIONAL SPEED After selecting overall length A, contact R+W for maximum speed.

H J ISO 4762

N

TEMPERATURE RANGE -30 to +100° C

E ISO 4017

I A±3

MODEL ZA SIZE

1500

4000

Rated torque

(Nm)

TKN

1500

4000

Overall length min. to max.

(mm)

A±3

280 - 6000

280 - 6000

Outside diameter

(mm)

B

157

200

Fit length

(mm)

C

61

80.5

Inside diameter from Ø to Ø H7 (mm)

D1/2

ISO 4017 clamping screws 6x

35 - 70

40 - 100

6 x M12

6 x M16

70

120

E Tightening torque

(Nm)

Length bellows body

(mm)

H

98

103,5

Distance

(mm)

I

82

84

10x M10

12x M12

70

120

ISO 4762 clamping screws Tightening torque of the assembly screws

J (Nm)

Outside diameter tube section

(mm)

K

150

160

Bolt hole circle Ø

(mm)

L

168

193

Outside diameter flange

(mm)

M

184

213

Shaft average value

(mm)

N

56

61

ORDERING EXAMPLE

ZA

1500

2551

50.8

70

XX

Model Size Overall length mm Bore Ø D1 H7

Special designation only (e.g. special bore tolerance).

Bore Ø D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. ZA / 1500 / 2551 / 50.8 / 70 / XX; XX = all stainless steel)

58

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BX

SPECIAL SOLUTIONS 1,500 - 100,000 Nm

CUSTOMER SPECIFIC SOLUTIONS Such as: special materials special lengths other special dimensions torque up to 1,000,000 Nm

BELLOWS COUPLINGS BX | ZA

...all available on request. Phone 1-630-521-9911

All data subject to change without notice.

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60 60

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EK EZ

ELASTOMER COUPLINGS EK | EZ

SIZES FROM 1,950 - 25,000 Nm BACKLASH FREE ELASTIC JAW COUPLINGS

Optional:

GENERAL INFORMATION ABOUT R+W ELASTOMER COUPLINGS:

SERVICE LIFE

SPECIAL SOLUTIONS

When properly selected, handled, and installed, these couplings are maintenance free with infinite service life.

Various materials, tolerances, dimensions and performance ratings available for custom applications on request.

ATEX (Optional) For use in hazardous areas available upon request.

FIT CLEARANCE Overall shaft / hub clearance of 0.01 - 0.05 mm

RW-AMERICA.COM

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EK EZ BACKLASH FREE ELASTIC JAW COUPLINGS速 SIZES FROM 1,950 - 25,000 Nm MODELE EKH

FEATURES with fully split clamping hubs from 1,950 - 25,000 Nm

Page 64

easy installation and removal allows for lateral mounting

EZ2

with fully split clamping hubs from 1,950 - 25,000 Nm

Page 65

standard lengths of up to 4 meters no intermediate support bearing necessary lateral installation and removal without disturbing adjacent equipment

EK1

with simple keyway mounting from 1,950 - 25,000 Nm

Page 66

economically priced version modifiable to customer specific dimensions and features available as solid stock hub for custom machining

EK6

with conical clamping ring from 1,950 - 25,000 Nm

Page 67

highly concentric design high clamping pressure on shafts hubs mount axially in case a housing will be used, no access holes are necessary

62

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GENERAL INFORMATION R+W ELASTIC JAW COUPLINGS

SHAFT MISALIGNMENT lateral

angular

axial

FUNCTION The equalizing element of the EK coupling is the elastomer insert. It transmits torque without backlash or vibration.

The elastomer insert defines the characteristics of the entire drive system.

Backlash is eliminated by the press fit of the elastomer into the hubs. Through variation of the Shore hardness of the elastomer insert, the coupling system can be optimized for the ideal torsional characteristics.

SIZE 2500 - 9500

A

B

E

Shore hardness 98 Sh A

Shore hardness 64 Sh D

Shore hardness 64 Sh D

ELASTOMER COUPLINGS EK | EZ

THE COUPLING INCLUDES 5X ELASTOMER SEGMENTS

DESCRIPTION OF THE ELASTOMER TYPES Type

Shore hardness

Color

Material

Relative damping (μ)

Temperature range

Features

A

98 Sh A

red

TPU

0.4 - 0.5

-30°C to +100°C

high damping

B

64 Sh D

green

TPU

0.3 - 0.45

-30°C to +120°C

high torsional stiffness

E

64 Sh D

beige

Hytrel

0.3 - 0.45

-50°C to +150°C

temperature resistant

The values of relative damping were determined at 10 Hz and +20˚ C.

SIZES EK SIZE

2500

Type (elastomer insert)

4500

9500

A

B

A

B

A

B

Static torsional stiffness

(Nm/rad)

CT

87600

109000

167000

372000

590000

670000

Dynamic torsional stiffness

(Nm/rad)

CTdyn

175000

216000

337000

743000

1180000

1340000

0.5

0.3

0.5

0.3

0.6

0.4

1.5

1

1.5

1

1.5

lateral misalignment angular misalignment axial misalignment

(mm) (Degree)

Max. values

(mm)

Static torsional stiffness at 50% TKN

All data subject to change without notice.

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±3

±4

1 ±5

Dynamic torsional stiffness at TKN

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EKH

WITH FULLY SPLIT CLAMPING HUB 1,950 - 25,000 Nm ABOUT FEATURES lateral mounting easy installation and removal allows for pre-alignment of shafts

DESIGN Two concentrically machined, fully split hubs with curved jaws and clamping screws. 5x elastomer segments press fit for zero backlash; standard versions are electrically isolating.

MATERIAL Hubs: GGG40 Elastomer: wear resistant thermally stable TPU

H1

ORDERING EXAMPLE see page 67

H

Ø DE

ØB

Ø D2H7

Ø D1H7

Ø BS

C

E ISO 4762 AE

G

elastomer insert type A / B

G1

A

MODEL EKH SIZE

2500

Type (Elastomer insert) Rated torque

4500

9500

A

B

A

B

A

B

2450

5000

6200

10000

12500

4900

10000

12400

20000

(Nm)

TKN

1950

Max. torque*

(Nm)

TKmax

3900

Overall length

(mm)

A

Length of center section

(mm)

AE

78

104

131

Outside diameter

(mm)

B

160

225

290

Outside diameter with screw head (mm)

BS

156

190

243

Mounting length

(mm)

C

85

110

140

Inside diameter range H7

(mm)

D1/2

35 - 90

40 - 120

50 - 140

Inside diameter of elastomer

(mm)

DE

80

111

145

8 x M16

8 x M20

8 x M24 1100

213

Clamping screw (ISO 4762) E

272

25000 341

Tightening torque of the clamping screw

(Nm)

300

600

Distance between centers

(mm)

F

57

72.5

90

Distance

(mm)

G/G1

36

24 / 34

30 / 48

Hub length

(mm)

H/H1

120 / 69

154 / 80

193 / 110

Moment of inertia per hub (10 -3 kgm2)

J1/J2

40

147

480

Approx. weight

(kg)

12.5

25

53

Speed standard

(min-1)

3,000

3,500

2,000

Speed balanced

(103min-1)

10

10

8

8

6.5

6.5

For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see page 63. * Maximum transmittable torque of the clamping hub depends on the bore diameter Size

Ø 35

Ø 45

Ø 50

Ø 55

Ø 60

Ø 65

Ø 70

Ø 75

Ø 80

Ø 90

2500

1400

1800

2000

2250

2500

2700

2900

3100

3300

3700

2400

2600

2900

3100

3400

3600

3900

4100

4700

6200

5000

5500

6000

6500

7000

7500

8000

9000

12000

4500 9500

Ø 120

Ø 140

14000

Higher torques possible with keyway.

64

All data subject to change without notice.

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EZ2

WITH FULLY SPLIT CLAMPING HUB 1,950 - 25,000 Nm ABOUT FEATURES easy installation and removal standard lengths up to 4 meters no intermediate support bearings required

Elastomer insert: wear resistant, thermally stable TPU DESIGN Two fully split clamping hubs, with four clamping screws in each, and concave driving jaws. Backlash free, vibration damping, electrically isolating elastomer inserts press fit into the hubs. Precision intermediate tube with a high level of straightness and lateral stiffness.

MATERIAL Hubs: GGG40 Intermediate tube: steel, optional CFK tube on request

C H

O

Ø D2H7

Ø DE

Ø B2

Ø B1

Ø D1H7

Ø BS

G1

E ISO 4762

G

elastomer insert type A / B A

SIZE

2500

Type (Elastomer insert) Rated torque

4500

9500

A

B

A

B

A

B

2,450

5,000

6,200

10,000

12,500

4,900

10,000

12,400

20,000

(Nm)

TKN

1,950

Maximum torque*

(Nm)

TKmax

3,900

Overall length

(mm)

A

25,000

460 - 4000

580 - 4,000

710 - 4,000

Outer diameter hub

(mm)

B1

160

225

290

Outer diameter tube

(mm)

B2

150

175

220

Outer diameter with screwhead

(mm)

BS

155

190

243

Fit length

(mm)

C

85

110

140

Inside diameter range from Ø to Ø H7

(mm)

D1/2

35 - 90

40 - 120

50 - 140

Max. inside diameter (Elastomer insert)

(mm)

DE

80

111

145

4 x M16

8 x M16

8 x M24 980

Mounting screw ISO 4762

E

Tightening torque

(Nm)

300

300

Distance between centers

(mm)

F

57

72,5

90

Distance

(mm)

G/G1

36

24 /34

30 / 48

H

142

181

229

J1/J2

30

140

450

Hub length

(mm)

Moment of inertia per hub

(10 -3 kgm2)

Inertia of tube per meter

(10 -3 kgm2)

J3

Combined dynamic torsional stiffness of the inserts (Nm/rad)

CTdynE

Torsional stiffness of tube per meter

CT

(Nm/rad)

360

750

87,500

108,000

168,500

1,800 371,500

590,000

670,000

1,000,000

2,500,000

Shaft average value

(mm)

N

108

137

171

Length

(mm)

O

67

85

105

ZWR

ELASTOMER COUPLINGS EK | EZ

MODEL EZ2

5,000,000

* Maximum transmittable torque of the clamping hub depends on the bore diameter - see page 64.

ORDERING EXAMPLE

EZ2

2500

1200

A

50.8

80

XX

Model Size Overall length Elastomer insert type

Special designation only (e.g. special bore tolerance).

Bore Ø D1 H7 Bore Ø D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. EZ2 / 2500 / 1200 / A / 50.8 / 80 / XX; XX = stainless steel)

All data subject to change without notice.

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WITH KEYWAY MOUNTING

EK1

1,950 - 25,000 Nm ABOUT FEATURES press fit design readily modified for custom dimensions low backlash (keyway)

DESIGN Two concentrically machined hubs with curved jaws, keyways, and set screws.

5x elastomer segments press fit for zero backlash; standard versions are electrically isolating.

MATERIAL Hubs: GGG40 Elastomer: wear resistant thermally stable TPU

Ø DE

G

ØB

Ø D2H7

Ø B1

Ø D1H7

A

elastomer insert type A / B H

E DIN 916

C

MODEL EK1 SIZE

2500

Type (Elastomer insert) Rated torque

4500

9500

A

B

A

B

A

B

2450

5000

6200

10000

12500

4900

10000

12400

20000

(Nm)

TKN

1950

Max. torque

(Nm)

TKmax

3900

Overall length

(mm)

A

213

272

341

Outside diameter

(mm)

B/B1

160 / 154

225 / 190

290 / 240

Mounting length

(mm)

C

88

113

142

Inside diameter (pilot bored)

(mm)

DV

30

40

50

Inside diameter range H7

25000

(mm)

D1/2

30 - 95

40 - 130

50 - 170

Inside diameter of elastomer(mm)

DE

80

111

145

Set screws (DIN 916)

E

Distance

see table (depending on bore Ø)**

(mm)

G

25

30

40

Possible shortening length (mm)

H

69

89

110

J1/J2

40

147

480

Moment of inertia per hub

(10-3 kgm2)

Approx. weight

(kg)

12.5

25

53

Speed standard

(min-1)

3,500

3,000

2,000

Speed balanced

(103min-1)

10

10

8

8

6.5

6.5

For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see page 63.

66

** Set screw

ORDERING EXAMPLE

Ø 12.1 - 30

M5

Model

EK1

2500

A

50.8

Ø 30.1 - 58

M8

Ø 58.1 - 95

M10

Bore D1 H7

Ø 95.1 - 130

M12

Bore D2 H7

Ø 130.1 - 170

M16

For custom features place an XX at the end of the part number and describe the special requirements (e.g. EK1 / 2500 / A / 50.8 / 80 / XX; XX = stainless steel)

Size Elastomer insert type

80

XX Special designation only (e.g. special bore tolerance).

All data subject to change without notice.

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EK6

WITH CONICAL CLAMPING RING 1,950 - 25,000 Nm ABOUT FEATURES high clamping pressure self centering on shaft very high concentricity

DESIGN Two concentrically machined hubs with curved jaws and conical clamping rings.

5x elastomer segments press fit for zero backlash; standard versions are electrically isolating.

MATERIAL Hubs: GGG40 Elastomer: wear resistant thermally stable TPU

A Ø DE

ØB

Ø D2H7

Ø B1

F

Ø D1H7

F

elastomer insert type A / B C

C

E ISO 4762

SIZE

2500

Type (Elastomer insert)

4500

9500

A

B

A

B

A

B

2450

5000

6200

10000

12500

4900

10000

12400

20000

(Nm)

TKN

1950

Max. torque

(Nm)

TKmax

3900

Overall length

(mm)

A

177

227

282

Outside diameter

(mm)

B/B1

160 / 159

225 / 208

285

Mounting length

(mm)

C

70

90

112

Inside diameter range H7

(mm)

D1/2

40 - 95

50 - 130

60 - 170

Inside diameter of elastomer

(mm)

DE

80

111

145

10x M10

10x M12

10x M16

60

100

160

Rated torque

Clamping screw (ISO 4762)

25000

ELASTOMER COUPLINGS EK | EZ

MODEL EK6

E

Tightening torque of the clamping screw

(Nm)

Distance

(mm)

Moment of inertia per hub (10 -3 kgm2) Approx. weight

(kg)

Speed standard

(min )

Speed balanced

(103min-1)

F

51

66

80

J1/J2

31.7

135.7

469.2

15

35

73

3,500

-1

10

3,000 10

8

2,000 8

6.5

6.5

For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see page 63.

ORDERING EXAMPLE

EK6 / EKH

2500

A

50.8

80

XX

Model Size Elastomer insert type

Special designation only (e.g. special bore tolerance).

Bore D1 H7 Bore D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. EK6 / 2500 / A / 50.8 / 80 / XX; XX = stainless steel)

All data subject to change without notice.

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LP

DISC PACK COUPLINGS LP

SIZES FROM 350 – 20,000 Nm TORSIONALLY STIFF DISC PACK COUPLINGS

GENERAL INFORMATION ABOUT R+W DISC PACK COUPLINGS:

SERVICE LIFE R+W disc pack couplings are fatigue resistant and wear free for an infinite service life, as long as the technical limits are not exceeded.

FIT CLEARANCE

ROTATIONAL SPEED see table

DELIVERY

Overall shaft / hub clearance of 0.01 - 0.05 mm

LP couplings are delivered with the disc packs pre-assembled. They need only to be mounted to the hubs.

TEMPERATURE RANGE

ATEX (Optional)

-30 to +280° C

For use in hazardous areas available upon request.

RW-AMERICA.COM

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LP

TORSIONALLY STIFF DISC PACK COUPLINGS SIZES FROM 350 – 20,000 Nm MODEL LP1

FEATURES with keyway mounting from 350 - 20,000 Nm

Page 72

very high torsional stiffness single flex design compact layout compensates for axial and angular misalignment

LP2

with keyway mounting from 350 - 20,000 Nm

Page 73

high torsional stiffness double flex design customer specified length available compensates for axial, angular, and lateral misalignment

LP3

with conical clamping ring from 350 - 20,000 Nm

Page 74

high torsional stiffness high clamping pressure backlash free torque transmission good for high speed, reversing and intermittent loading

LPA

with keyway mounting for API 610 pump systems from 350 - 20,000 Nm

Page 75

customizable for individual project requirements intermediate tube removable without disturbing adjacent equipment integral safety catch in case of disc pack rupture customer specified DBSE available

70

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DESIGN DISC PACK COUPLINGS R+W disc pack couplings transmit torque across the disc pack assemblies purely by friction, thus avoiding stress concentration, backlash, and micro-movements resulting from transmitting torque across shoulder bolts. This aids in approaching infinite life in addition to making the complete coupling assembly more torsionally stiff.

R+W disc pack couplings are shipped as individual components. Assembly is required.

∆ Ktotal = ∆ Kr + ∆ Kw + ∆ Ka ≤ 100%

DISC PACK COUPLINGS LP

∆

Ka

Ax

∆ Kr Lateral Misalignment

ia l

m

isa

lig

nm

en

t

MISALIGNMENT COMPENSATION

∆ Kw Angular misalignment These couplings compensate for varying combinations of shaft misalignment types as percentages of the total allowable misalignment values listed in the data tables.

The total sum of the three misalignment percentages must not exceed 100%.

Example: pump skid axial misalignment: 20% lateral misalignment: 40% angular misalignment: 40%

∆ Ktotal = 20% + 40% + 40% ≤ 100% 쐀 coupling is fatigue resistant RW-AMERICA.COM

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WITH KEYWAY MOUNTING

LP1

350 - 20,000 Nm ABOUT FEATURES very high torsional stiffness single flex design wear and maintenance free

DESIGN Two precision machined coupling hubs mounted to the disc pack by means of high strength screws and bushings for alignment and frictional clamping of the assembly. Axial retention with DIN 916 set screws.

MATERIAL Disc pack: highly elastic spring steel Hubs: high strength steel

Ø B1

A +/- 1 E DIN 916

C

H

Ø D2

Ø B2

Ø D1

F

DIN 6885 / ANSI B17.1 or special dimensions

MODEL LP1 SIZE

300

700

2000

4000

7000

Rated torque

(Nm)

TKN

350

700

2000

4500

7600

10000 10000

Maximum torque

(Nm)

TKmax

700

1400

4000

9000

15200

20000

Overall length

(mm)

A

95

116

158

193

216

268

Outside diameter

(mm)

B1

99

128

150

198

238

298

Hub diameter

(mm)

B2

63

78

86

120

140

194

Hub fit length

(mm)

C

45

55

75

90

100

125

Bore diameter available from Ø to Ø H7

(mm)

D1/2

18 - 48

25 - 58

28 - 64

38 - 90

50 - 102

70 - 140

Set screw (DIN 916)

E

Distance to screw

(mm)

Assembly screw (ISO 4762) Nut (DIN 934) Tightening torque

(Nm)

Moment of inertia

(10-3kgm2)

see table (depends on bore diameter)*

F

15

15

20

20

25

30

H

M8

M10

M16

M20

M24

M24

38

75

320

650

1000

1100

Jges.

1.8

5.6

13.9

52.2

127

412

steel

steel

steel

steel

steel

steel

Material Approximate weight Torsional stiffness Axial ±

(kg) (103Nm/rad)

CT

2

3.8

6.7

13.3

20.9

41.4

470

1200

1500

3600

6000

13300

(mm)

0.5

0.75

1

1.25

1.25

1.5

Angular ±

(degree)

0.7˚

0.7˚

0.7˚

0.7˚

0.7˚

0.7˚

Maximum speed

(1/min.)

10000

8000

6000

5000

4500

4000

Ø 18 - 30

Ø 30.1 - 44

Ø 44.1 - 65

Ø 65.1 - 85

Ø 85.1 - 110

Ø 110.1 - 140

M5

M8

M10

M12

M16

M20

Bore range Ø

(mm)

Set screw size*

ORDERING EXAMPLE

LP1

700

42

38.1

XX

Model Size Bore D1 H7

Special designation only (e.g. special bore tolerance).

Bore D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. LP1 / 700 / 42 / 38.1 / XX; XX = stainless steel)

72

All data subject to change without notice.

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02.01.14 11:01

WITH KEYWAY MOUNTING

LP2

350 - 20,000 Nm ABOUT FEATURES high torsional stiffness double flex design customer specified length available

DESIGN Two precision machined coupling hubs and precision spacer tube mounted to the disc packs by means of high strength screws and bushings for alignment and frictional clamping of the assembly. Axial retention with DIN 916 set screws.

MATERIAL Disc packs: highly elastic spring steel Hubs and spacer: high strength steel

Ø B1

A +/-2 E DIN 916

C

H

DIN 6885 / ANSI B17.1 or special dimensions

Ø D2

Ø D1

Ø B2

F

G

MODEL LP2 SIZE

300

700

2000

4000

7000

10000

Rated torque

(Nm)

TKN

350

700

2000

4500

7600

10000

Maximum torque

(Nm)

TKmax

700

1400

4000

9000

15200

Overall length

(mm)

A

Outside diameter

(mm)

B1

99

128

150

198

238

298

Hub diameter

(mm)

B2

63

78

86

120

140

194

Hub fit length

(mm)

C

45

55

75

90

100

125

(mm)

D1/2

18 - 48

25 - 58

28 - 64

38 - 90

50 - 102

70 - 140

15

15

Set screw (DIN 916) (mm)

F

Distance

(mm)

G

Assembly screw (ISO 4762) Nut (DIN 934)

226

286

(Nm)

Moment of inertia

(10-3kgm2)

80

96

96

M8

3

(kg)

(mm)

Lateral ±

(mm)

CT

136

340

370

7.4

20 142

140

M16

75 3.1

steel

Axial ±

320

20 116

M10

38 Jges.

Material

(103Nm/rad)

292

20000 394

470

482

see table (depends on bore diameter)*

H

Tightening torque

Torsional stiffness

206

E

Distance to screw

Approximate weight

186

25

steel

170

M20

320 7.7

25 160

89.3

steel

220

M24

650 25.2

30 194

M24

1000 90.4

230

steel

232

1100 236

721

steel

726 steel

3

4.7

11

20.7

35

68.8

220

550

700

1700

2800

6200

1 0.8

1.5 1

1

2 1.3

1.4

2.5 1.5

1.4

2.5 1.6

1.6

3 1.9

2.2

2.4

Angular ±

(degree)

1˚

1˚

1˚

1˚

1˚

1˚

Maximum speed

(1/min.)

10000

8000

6000

5000

4500

4000

Ø 18 - 30

Ø 30.1 - 44

Ø 44.1 - 65

Ø 65.1 - 85

Ø 85.1 - 110

Ø 110.1 - 140

M5

M8

M10

M12

M16

M20

Bore range Ø

(mm)

Set screw size*

ORDERING EXAMPLE

LP2

700

206

38.1

42

DISC PACK COUPLINGS LP

Bore diameter available from Ø to Ø H7

170

XX

Model Size Overall length mm

Special designation only (e.g. special bore tolerance).

Bore D1 H7 Bore D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. LP2 / 700 / 206 / 38.1 / 42 / XX; XX = stainless steel)

All data subject to change without notice.

R+W_Produktkatalog_Schwerlast_Aufl1_USA.indd 73

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02.01.14 11:01

WITH CONICAL CLAMPING RING

LP3

350 - 20,000 Nm ABOUT FEATURES high torsional stiffness high clamping pressure backlash free torque transmission good for high speed, reversing and intermittent loading

DESIGN Two precision machined conical clamping ring hubs and precision spacer tube mounted to the disc packs by means of high strength screws and bushings for alignment and frictional clamping of the assembly.

MATERIAL Disc packs: highly elastic spring steel Hubs and spacer: high strength steel

Ø B1

A +/- 2 C

Ø D2

H

Ø D1

Ø B2

E DIN 933

G

MODEL LP3 SERIE

300

700

2000

4000

7000

Rated torque

(Nm)

TKN

350

700

2000

4500

7600

10000 10000

Maximum torque

(Nm)

TKmax

700

1400

4000

9000

15200

20000

Overall length

(mm)

A

153

198

303

321

410

490

Outside diameter

(mm)

B1

99

128

150

198

238

298

Hub diameter

(mm)

B2

95

125

146

194

234

294

Hub fit length

(mm)

C

37

51

71

92

120

135

Bore diameter* available from Ø to Ø H7

(mm)

D1/2

24 - 50

30 - 65

35 - 70

50 - 100

60 - 115

70 - 170

E

6x M8

6x M10

6x M12

6x M16

6x M20

6x M20

25

50

100

250

470

500

G

79

96

161

137

170

220

H

M8

M10

M16

M20

M24

M24

38

75

320

650

1000

1100

Jges.

4.2

16.2

44.5

167

468

1280

steel

steel

steel

steel

steel

steel

3.2

7.3

14.8

31.4

59.3

98.4

220

550

700

1700

2800

6200

Clamping screws (ISO 4017) Tightening torque

(Nm)

Distance

(mm)

Assembly screw (ISO 4762) Nut (DIN 934) Tightening torque

(Nm)

Moment of inertia

(10-3kgm2)

Material Approximate weight Torsional stiffness

(kg) (103Nm/rad)

CT

Axial ±

(mm)

1

1.5

2

2.5

2.5

3

Lateral ±

(mm)

0.8

1

1.5

1.4

1.6

2.2

Angular ±

(degree)

1˚

1˚

1˚

1˚

1˚

1˚

Maximum speed

(1/min.)

10000

8000

6000

5000

4500

4000

* transmittable torque can depend on the bore diameter (contact supplier for details)

ORDERING EXAMPLE

LP3

700

198

42

38.1

XX

Model Size Overall length

Special designation only (e.g. special bore tolerance).

Bore D1 H7 Bore D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. LP3 / 700 / 198 / 42 / 38.1 / XX; XX = stainless steel)

74

All data subject to change without notice.

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FOR API 610 REQUIREMENTS

LPA

350 - 20,000 Nm ABOUT FEATURES meets all requirements of API 610 intermediate tube removable without disturbing adjacent equipment integral safety catch in case of disc pack rupture ISO G6.3 / AGMA class 9 minimum balance quality highly customizable

Hubs and spacer: high strength steel DESIGN Two precision machined coupling hubs and precision spacer tube mounted to the disc packs by means of high strength screws and bushings for alignment and frictional clamping of the assembly. Axial retention with DIN 916 set screws.

MATERIAL Disc packs: highly elastic, corrosion resistant spring steel Ø B1

A +/- 2 E DIN 916

C

H

DIN 6885 / ANSI B17.1 or special dimensions

Ø D2

Ø D1

Ø B2

F

L

MODEL LPA

G

SIZE

300

700

2000

4000

7000

Rated torque

(Nm)

TKN

350

700

2000

4500

7600

10000

Maximum torque

(Nm)

TKmax

700

1400

4000

9000

15200

20000

190

230

250

290

330

400

360

430

380

10000

Overall length

(mm)

A

Outside diameter

(mm)

B1

104

130

160

202

248

450

500 312

550

Hub diameter

(mm)

B2

63

78

86

120

140

194

Hub fit length

(mm)

C

45

55

75

90

100

125

Bore diameter available from Ø to Ø H7

(mm)

D1/2

18 - 48

25 - 58

28 - 64

38 - 90

50 - 102

70 - 140

E

Distance to screw

(mm)

F

Distance

(mm)

G

Assembly screw (ISO 4762) Nut (DIN 934) Tightening torque

see table (depends on bore diameter)* 15 100

H (Nm)

Safety catch screws (DIN 916)

L

Axial ±

(mm)

Lateral ±

(mm)

CT

20 250

180

25 250

180

30 250

250

300

M10

M16

M20

M24

M24

75

320

650

1000

1100

M8 3.1

(kg)

180

38 7.4

steel (103Nm/rad)

20 180

M8

3

Material Torsional stiffness

140

M6

Moment of inertia (10-3Nm/kgm2) Approximate weight

15 140

M10 7.7

25

steel

M12 25.2

89.3

steel

M16 90.4

230

steel

M20 236

721

steel

726 steel

3

4.7

11

20.7

35

68.8

220

550

700

1700

2800

6200

1 0.8

1.5 1

1

2 1.3

1.4

2.5 1.5

1.4

2.5 1.6

1.6

3 1.9

2.2

2.4

Angular ±

(degree)

1˚

1˚

1˚

1˚

1˚

1˚

Maximum speed

(1/min.)

10000

8000

6000

5000

4500

4000

Ø 18 - 30

Ø 30.1 - 44

Ø 44.1 - 65

Ø 65.1 - 85

Ø 85.1 - 110

Ø 110.1 - 140

M5

M8

M10

M12

M16

M20

Bore range Ø Set screw size*

ORDERING EXAMPLE

LPA

700

250

42

38.1

DISC PACK COUPLINGS LP

Set screw (DIN 916)

XX

Model Size Overall length mm

Special designation only (e.g. special hub for large bore).

Bore D1 H7 Bore D2 H7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. LPA / 700 / 250 / 42 / 38.1 / XX; XX = stainless steel)

All data subject to change without notice.

R+W_Produktkatalog_Schwerlast_Aufl1_USA.indd 75

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02.01.14 11:01

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BZ

CROWNED GEAR COUPLINGS BZ

SIZES FROM 1,300 - 348,000 NM CROWNED GEAR COUPLINGS

GENERAL INFORMATION ABOUT R+W CROWNED GEAR COUPLINGS: FIT CLEARANCE

TEMPERATURE RANGE

Overall shaft / hub clearance of 0.01 - 0.05 mm

-30 to +100째 C; higher temperatures on request

RW-AMERICA.COM

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BZ

CROWNED GEAR COUPLINGS SIZES FROM 1,300 - 348,000 Nm MODEL

FEATURES with keyway mounting

BZ1

Pages 80-81

high power density very low backlash economically priced low maintenance due to special crowned tooth design

78

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GENERAL INFORMATION CROWNED GEAR COUPLINGS

FUNCTION OF THE GEAR COUPLING The precise integration of the coupling hub and intermediate flange allow for low backlash and highly rigid torque transmission, while compensating for lateral, axial, and

angular shaft misalignment. The crowned geometry of the gearing allows for a long life, even without the presence of misalignment.

Axial misalignment

Angular and lateral misalignment

precision crowned teeth

coupling hub tilts within the flange

CROWNED GEAR COUPLINGS BZ

coupling hub moves axially within the flange

straight teeth in flange

RW-AMERICA.COM

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02.01.14 11:01

BZ1

WITH KEYWAY MOUNTING 1,300 - 348,000 Nm ABOUT MATERIAL Coupling made of burnished high strength steel

DESIGN Hubs with keyway mounting or high precision cylindrical bore for interference fitting. Optional DIN 916 set screw for locking down onto shaft key.

A

ØF

Ø D2

C

Ø D1

Ø B3

Ø B2

Ø B1

C

2x Ø G

H

E

MODEL BZ1 SIZE Rated torque

10

25

50

100

150

200

300

450

600

800

1100

1700

(Nm)

TKN

1,300

2,800

5,000

10,000

16,000

22,000

32,000

45,000

62,000

84,000

115,000

174,000 348,000

Ma ximum torque

(Nm)

TKma x

2,600

5,600

10,000

20,000

32,000

44,000

64,000

90,000

124,000

168,000

230,000

Overall length

(mm)

A

89

103

127

157

185

216

246

278

308

358

388

450

Flange outside diameter

(mm)

B1

111

141

171

210

234

274

312

337

380

405

444

506 426

Flange hub outside diameter

B2

80

103.5

129.5

156

181

209

247

273

307

338

368

Shaft hub outside diameter

B3

67

87

106

130

151

178

213

235

263

286

316

372

Shaft fit length

C

43

50

62

76

90

105

120

135

150

175

190

220

D1 /D2

10 - 45

15 - 60

25 - 75

30 - 95

35 - 110

50 - 130

60 - 155

75 - 175

85 - 195

95 - 215

115 - 240

145 - 275

Hub length

E

41

47

58.5

68.5

82

98

108.5

121

132

151.5

165

183.5

Diameter for handling screws

F

–

–

–

–

130

155

185

205

226

250

276

330

Handling screw size

G

–

–

–

–

2 x M8

2 x M8

2 xM10

2 xM12

2 xM16

2 xM16

2 xM16

2 xM20

6 xM8

8 xM10

6 xM12

6 xM16

8 xM16

8 xM20

8 xM20

10 xM20

10 xM20

14 xM20

14 xM24

16 xM24

33.5

66

112

277

277

537

537

537

537

537

795

795

0.005

0.015

0.04

0.105

0.191

0.43

0.842

1.32

2.448

3.716

5.384

10.872

Available bore diameters (from-to) H7

(mm)

He x head screw (10.9) Tightening torque

(Nm)

Moment of inertia

(kgm2)

Appro ximate weight Grease volume

(kg) (dm3)

Hub material A xial misalignment Angular misalignment Ma x. speed

(mm) (degrees) (rpm)

ORDERING EXAMPLE

H

4

7

14

25

37

60

90

118

169

224

277

414

0.05

0.07

0.13

0.21

0.36

0.52

0.8

0.98

1.51

2.02

2.43

3.29

Steel

Steel

Steel

Steel

Steel

Steel

Steel

Steel

Steel

Steel

Steel

Steel

3

3

3

5

5

6

6

8

8

8

10

10

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

2 x0.75

7000

6200

5650

5100

4700

4350

4000

3800

3600

3450

3300

3050

BZ1

50

60.33

50

XX

Model Size Bore Ø D1 F7

Special designation only (e.g. special bore tolerance).

Bore Ø D2 F7 For custom features place an XX at the end of the part number and describe the special requirements (e.g. BZ1 / 50 / 60.33 / 50 / XX)

80

All data subject to change without notice.

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02.01.14 11:01

APPROVED LUBRICANTS Note: Proper lubrication is very important to the service life of the coupling. An optional seal may be included in order to extend lubrication periods.

High performance grease is recommended.

Normal speed and loads

High speed and loads

Castrol Impervia MDX

Caltex

Coupling Grease

Esso

Fibrax 370

Kl端ber

Kl端berplex GE 11-680

Kl端ber

Kl端berplex GE 11-680 Mobil

Mobilgrease XTC

Mobil

Mobilux EPO

Shell

Albida GC1

Shell

Alvania grease EP R-O or ER 1

Texaco Coupling Grease

Total

Specis EPG

MAINTENANCE AND LUBRICATION Grease fitting (closed off with self locking screw) grease filled O-ring seal

additional seal optional

CROWNED GEAR COUPLINGS BZ

gear teeth

All data subject to change without notice.

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ATEX

ATEX CERTIFIED COUPLINGS

FOR USE IN HAZARDOUS AREAS

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FOR USE IN HAZARDOUS AREAS INDUSTRIAL DRIVE COUPLINGS

ATEX

MARKING EXAMPLE Based on the ATEX markings the product can be certified for suitability under certain conditions.

II

2G

c

II

2D

c

Equipment group

Category

Protection type

Equipment group

IIA T6

X

85°C

X

Explosion group / temperature class / maximum surface temperature

Additional features

Approval type

I

approved for underground operation

II

approved for all other applications

Category

Approved for zone

1G

0

Area in which an explosive atmosphere consisting of a mixture of air and flammable gases, vapors, or mists, is present continuously, frequently, or for long periods of time.

2G

1

Area in which the potential exists for an explosive mixture of air and flammable gases, vapors, or mists to occur.

3G

2

Area in which the potential for an explosive mixture of air and flammable gases, vapors, or mists to occur is unlikely and only for a brief duration.

1D

20

Area with the same conditions as zone 0, with powder or dust.

2D

21

Area with the same conditions as zone 1, with powder or dust.

3D

22

Area with the same conditions as zone 2, with powder or dust.

Protection type c

Zone description

Definition Design safety level: ignition hazard is avoided by the product design.

Example classification by occurring gases, mists and vapors according to temperature class and explosion group Explosion group / temperature class / maximum surface temperature

IIA

IIB (includes IIA)

IIC (includes IIA + IIB)

T1 / 450°C

acetone, ammonia, methane...

natural gas

hydrogen

T2 / 300°C

ethyl alcohol, butane, cyclohexane...

ethylene, ethylene oxide

ethyne (acetylene)

T3 / 200°C

gasoline, diesel fuel, fuel oil...

ethylene glycol, hydrogen sulfide

T4 / 135°C

acetaldehyde

ethyl ether

T5 / 100°C T6 / 85°C

Additional labeling

84

carbon disulphide

Definition

X

Special operating conditions

U

Product is only a component in a machine. Conformity therefore shall only be declared after installation.

All data subject to change without notice.

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GENERAL INFORMATION The use of devices and components in explosive areas is governed by the European directives 94/9/EC (for manufacturers) and 1992/92/EC (for operators). The presented products are non-electrical equipment of category 2.

According to Directive 94/9/EC, delivery of an ATEX coupling requires the inclusion of special installation and operating instructions along with the EC declaration of conformity issued by the manufacturer. All necessary values for installation, operation and removal are included.

Product specific information about ATEX certified couplings, such as temperature class, are available on request.

All statements made about ATEX conforming products are based on our present knowledge and experience. R+W reserves the right to change technical specifications.

ATEX CERTIFIED COUPLINGS

All models of BX, LP, EK, and ST are available with ATEX certification on request. The BZ coupling is not intended for use in hazardous areas.

R+W Couplings are ATEX approved for use in general industry (Group II). Operation in hazardous zones 1 and 2 (Category 2G) and 21 and 22 (category 2D) are allowed.

For the device group I, as well as for zones 0 and 20 the couplings are not registered.

All data subject to change without notice.

R+W_Produktkatalog_Schwerlast_Aufl1_USA.indd 85

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02.01.14 11:01

PERFECT CONNECTIONS WORLDWIDE. QUALITY "MADE IN GERMANY."

AUSTRALIA | ARGENTINA | BELGIUM | BOSNIA-HERZEGOVINA | BRAZIL | CHILE | CHINA | DENMARK | ESTONIA | FINLAND | FRANCE | GREECE | UK | INDIA | INDONESIA | ISRAEL | ITALY | JAPAN | CANADA | COLOMBIA | KOREA | CROATIA | LITHUANIA | MALAYSIA | MEXICO | MACEDONIA | MONTENEGRO | NEW ZEALAND | NETHERLANDS | NORWAY | AUSTRIA | PERU | PHILIPPINES | POLAND | PORTUGAL | ROMANIA | RUSSIA | SAUDI ARABIA | SWEDEN | SWITZERLAND | SERBIA | SINGAPORE | SLOVAKIA | SLOVENIA | SPAIN | SOUTH AFRICA | TAIWAN | THAILAND | CZECH REPUBLIC | TURKEY | UKRAINE | HUNGARY | USA | UNITED ARAB EMIRATES

86

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R + W ANTRIEBSELEMENTE GMBH

R+W ITALIA S.R.I.

Alexander-Wiegand-Strasse 8 D - 63911 Klingenberg/Germany Phone +49 9372 986 40 Fax +49 9372 986 420 info@rw-kupplungen.de www.rw-kupplungen.de

Via Pisa, 134 I - 20099 Sesto San Giovanni (MI) Phone +39 02 262 641 63 Fax +39 02 243 085 64 info@rw-italia.it www.rw-italia.it

R+W AMERICA

R+W FRANCE OFFICE

1120 Tower Lane Bensenville, IL 60106 USA Phone +1 630 521 9911 Fax +1 630 521 0366 info@rw-america.com www.rw-america.com

713, route de TrĂŠconnas F - 01250 Ceyzeriat France Phone +33 4 74 42 98 37 Fax +33 4 74 45 01 14 info@rw-france.fr www.rw-france.fr R+W SINGAPORE OFFICE

R+W MACHINERY (SHANGHAI) CO., LTD Dept. J, 4 Floor, No 207, Tai Gu Road PRC Waigaoquiao Free Trade Zone (Postcode 200131) Shanghai China Phone +86 21 586 829 86 Fax +86 21 586 829 95 info@rw-china.com www.rw-china.com

55 Market Street #10-00 Singapore 048941 Phone +65 3158 4434 Fax +65 6521 3001 info@rw-singapore.com.sg www.rw-singapore.com.sg

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R+W AMERICA 1120 TOWER LANE BENSENVILLE, IL 60106, USA WWW.RW-AMERICA.COM

PHONE: +1 630 521 9911 FAX: +1 630 521 0366 INFO@RW-AMERICA.COM

Version: 01/2013

QUALITY MANAGEMENT We are certified according to ISO 9001:2008 D-ZM-16029-01-01 Registration No. 40503432/3 The information included in this document is based on our present knowledge and experience and does not exclude the manufacturer's own substantial testing of the products.

Therefore we do not guarantee protection against third party claims. The sale of our product is in accordance with our general terms and conditions.

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THE COUPLING.

02.01.14 11:01